To continue the discussion about sunburns watch this video and discover the answer to the burning question Why Don't Snakes And Many Other Animals Get Sunburned?: ua-cam.com/video/5RU7J3M56Ug/v-deo.html
Great, now can you do a video about the health benefits of sunlight. Like how sunlight seems to decrease risk of nearsightedness, and how it also seems to effect hormone levels
Went to Cyprus a couple months ago. I'm very pale and can barely tan. When we went, I made sure that I was plastered in factor 50 sunscreen. First day, I got very burnt across my shoulders and chest. It didn't really ruin the holiday, it was great, but needless to say, it made the holiday a lot more uncomfortable than I would have liked. Had to wear a shirt for the whole rest of the holiday, even in the pool.
Use a thin longsleeved t-shirt and a hat. Sunscreen is only effective for 20 min then you need to reaply more. Many studies has tested sunscreen. Not very effective.
Do a video on the origin of the Grim Reaper. Why a skeleton in a black hooded robe? Why the scythe, a farm tool used for cutting grass and other tall stalky foliage off at the base. That would be quite interesting.
Great timing watching this video. I just got back from the dermatologist after having a bit of skin cancer removed. Too many rounds of golf I suppose. BTW....it was not much fun getting a chunk of my face carved out.
This is what I heard. Don't read it if you don't want to know. :) It's because there used to be a whip called the cat of nine tails. It was tradition that once the whip was taken out the bag in which it was kept, it couldn't be put back in until someone had been whipped. Thus, once the cat was out of the bag, it was too late to go back on something.
True, cancer is the second biggest killer in the west after heart attacks, and rising. But sunlight helps the body produce vitamin D witch protects us from cancer and colds, depression, alzheimers, autism.... If you eat leafy green vegetables evry day and don't eat five times a day (Autophagy+low insulin) your chance of developing cancer i reduced even more. And your much less likely to get the nr 1 killer , heart attack (stroke). Autophagy is 40% less risk of getting cancer back for people who already had cancer. Really big numbers for something so easy to do. Low insulin = no diabetes = no stroke. 80% of people who gets stroke have diabetes or prediabetes. That's how you avoid nr.1. Lowering your insulin levels is also very easy to do.
I do lots of strenuous hiking at altitude of about 2500-3050 meters (8,200-10,000 feet) above sea level where exposure to UV radiation is even higher. All i wear is SPF 15 (i do apply however ever hour), a hat and sunglasses and im good to go. I used Zinc oxide, never oxybezone.
Ray Chang thanks man, here in Southern California, theres lots of trails. We have multiple peaks above 2,500 meters, and the highest topping out at 3,507 meters.
Ray Chang awesome dude, here is socal we only have about 30 peaks over 3,000 meters. But a 3 hour drive north and we have the Sierra Nevadas which is like California version of the Himalayas lol.
I don't even see the sun throughout the week due to work hours, only through the occasional window in the warehouse can I see the grey outdoors and busy roads. No time to stop and look.
Funfact: TiO2 as found in sunblocker is considered to be antimicrobial in combination with sunlight. The reason being is that TiO2 catalysis photoreactions resulting in free radicals which damage the bacteria! My question now: do they somehow defuse that property of TiO2, or is it just 100x better to have potentially damaging radicals on your skin surface than deep within your cells (and thus far closer to your precious DNA)?
Free radical damage is only a significant problem if it affects the DNA, which is why cells have specific chemicals/enzymes to deal with free radicals. The skin is layers of dead cells on top of dying cells on top of dermal cells that have strong cell membranes and is very good at keeping the outside out. The free radicals formed by TiO2 have no chance of damaging anything important in your skin.
The delay in symptoms has frequently tricked me. I can't tell you how many times I've forgetten to put on the sunscreen and I walk away going "huh, no burn. Maybe my tan's helping me out" before my body goes "psych!" and I wake up redder than the Kool Aid Man.
I hate tanning, I usually stay in the shade. For the small amount of time that I do have to stay in the sun (like walking to and from the beach), I get tanned very quickly, I don't get red, I immediately get tanned and I get darker after about 30 min under the sun (I can see it with the naked eye).
Is there any positive health effects that come from getting burned from the sun? Does it make your skin tougher? Does it help make the skin burn less in the future? Thanks
You are a little less likely to get sunburned in the near future but you should always try to get your sun gradually. If your outside almost evry day that will happen automatically because of the suns going a little bit higher in the sky evry day.
I only get sunburned when I'm wet :T, I could be in the scorching sun for an hour and maybe only get a slight tan but if I'm in the sun while in the ocean I pretty much get burned instantly, it's pretty much the reason I prefer going to Rivers, much less sunlight.
I just found my sunscreen. It's called "Sunplay (R) SPF 50+ PA+++" It says "Watery Cool" with a picture of two penguins, and then it says "New Solarex-3 technology offers full protection". HAHA, maybe I got ripped off. I bought it at a Watson's store in Taiwan. I live south of the Tropic of Cancer (same latitude as Havana, Cuba.) I stay tan for most of the year and don't burn all that easily, and I've only used the sunscreen for my arms and legs on long motorcycle trips (face not needed, as I wear a full-face helmet). I guess it works....sort of. I used to have sunscreen that was a slightly-yellow watery paste and greasy. When the sun hits it , my skin had a deep purple haze to it. That was cool. I wish I could remember the brand and try to find it again.
Studies show that people that use tanning beds have less cancer than people that dont. Talking about all kinds of cancer. Not a huge difference but it shows you that simple logic is not used in the sun scare. The difference would have been much greater if more then 2% of the sunrays i a tanning bed helped the cholesterol in your skin to produce the essentiall vitamin D.
Just got super burned, but only on a quarter of my face and with a clear division where a hat I wore left my natural, pasty pale flesh safe. Looking forward to that melanoma...
One thing I still don't get is the circumstances of my sunburns. I'm pale white, but I can walk for 1h in plain sun without even getting red, as long as I wear long and rather thick clothes (which don't protect my neck, face or hands). However, when I go swimming I get a sunburn 30% of the time, despite smearing myself with sunblocker every F-ing time I go into the sun. I understand that water removes the sunblocker, but I seem to get most my sunburns in the shadow of trees and parasols (mainly at my legs).
The problem with water is that it reflects UV-rays. So, not only does it wash off your sunscreen, it also exposes you to more UV-rays than if you were to lie on dry land.This is why you get sunburn faster when you're in the water. Parasols don't protect against UV-rays. They're usually semi-translucent, so if regular light can pass through, UV-rays, which have a smaller wavelength, can pass through pretty much undisturbed. And shade doesn't protect you against anything. All it does is provide you with a cooler spot than your immediate surroundings. UV-rays can still get through your skin unhindered, so if you forget to put on sunscreen in these two cases, that is why you burn faster.
Thank you. Your explanation makes sense. Do you know anything about the TiO2 dilemma? TiO2 as found in sunblocker is considered to be antimicrobial in combination with sunlight. The reason being is that TiO2 catalysis photoreactions resulting in free radicals which damage the bacteria! My question now: do they somehow defuse that property of TiO2, or is it just 100x better to have potentially damaging radicals on your skin surface than deep within your cells (and thus far closer to your precious DNA)?
I'm not an expert in this field, so I can't answer with absolute certainty. The problem seems to be that these radicals can theoretically penetrate deep within your skin, because of their small size, and cause cancer that way. However, there doesn't seem to be any actual cases in which skin cancer can be traced back to the use of TiO2 in sunscreen, so in that sense, it appears relatively safe. You can _inhale_ these radicals, though, and that _does_ form a health hazard, so for that reason alone,. the use of it may be discouraged. I may be oversimplifying it, though, so if you really want to know more, try reading some medical literature on it, or ask an expert.
I'm not so sure about the radicals. Most of them are so unstable that they'll react with the next thing they can find or decompose. Thus, they won't travel far. Sure, quite a number of them are hydrophobic enough to go through the cell-membranes, but the question is how far they go. As a comparison. If you get acid on your skin it sucks, but having the same amount in your blood could kill you. If you think of Po(OAc)2 (Polonium) is very radioactive, but its radiation does not penetrate deep, thus it's fairly safe in a vial and it most probably won't kill you, if you get it onto your skin, but eating, inhaling or injecting it is a guaranteed agonizing death. It's funny, but some chemicals are toxic, but yet you can even eat them. AFAIK this holds true for elemental mercury (just don't inhale it) and curare (which is a fast working poison, if it enters the bloodstream).
Had sunburn so badly last year had a little think called hells itch where the burn itches but even if you itch it it'll burn and continue to itch anyway... worst day of my life
The ear has 3 main sections to it. The outer ear includes the pinna (the flappy bits on the sides of your head) and the ear canal. The middle ear contains the smallest bones in the human body, acting as a system of levers passing vibrations on to the inner ear. The barrier between the outer and middle ear is the tympanic membrane, or eardrum, a stretched membrane like the skin of a drum. If the pressure in the middle ear is different from outside, the eardrum will get sucked in or pushed out a bit, and you won't be able to hear as well as the bones (which are connected to the eardrum) won't move as well as they should. To counteract this, the ears pop. This lets air move through the eustachian tube to or from the middle ear to balance the pressure. This tube is connected to your ears and your throat (roughly). When you pinch your nose and blow, you force air out of your lungs and increase the pressure in your mouth and nose and along the tube. The valve at the end of the tube thinks there's a pressure difference between your eat and the air, so pops open to allow this the balance out. As an aside, when you have a cold, the tube can get blocked and your ears can become unable to pop, which is why your hearing sometimes goes dull and your ears (eardrums) can hurt. Hope that helps :)
Little gremlins that live in your ears build walls to protect from outside enemies, giving you the blocked ear feeling. When they detect activity around your nose - such as it being blown - they mistake it for their enemies trying to flank them, so they break down their walls so that they can escape.
How is the absorption of Vitamin B differ when these compounds designed for protection from UV-A and UV-B are applied? Not suggesting it is a reason to burn yourself, just a curiosity.
I think you could have went a little bit more into what happens after you get sunburn. Skin peeling and stuff like that. Still an enjoyable video though :P
I could never understand why so many people seem to hate sunscreen so much. I always liked putting it on. It's no different than any other type of perfumed skin lotion. Coppertone is my favorite. That's the smell of summer, right there. It brings back good memories.
Yeah, I love the scent of it, too. Reminisces of childhood days at the beach. But getting it to my skin is a completely other story. I hate the feeling of stickiness it lefts you with, and all the sand it gathers with the wind, and the fact that you have to reapply it every couple hours or every time you go to the water. It's a necessary nuisance.
The problem is what in some of them, not all and that it's only effectiv a very short time. A study from a few years back said only 20 min. Hopefully the new ones are little bit better. But still much better to ware a thin longsleeved t-shirt untill you developed a tanned skin.
No. It would reduce the effects, but not stop them. Even people with the darkest of skin need to be cautious if they're spending excessive amounts of time in the sun. (Never mind things like heat stroke and dehydration that have nothing to do with your skin pigments and can affect anyone fairly equally if they don't take precautions.)
I work 8 hours a day, 5 days a week outside and have never gotten a sunburn and hate the feel of sunscreen, should I still use it? I’ve been working outside for 1 and a half years now, and it’s my first job.
Assuming you're white, or only slightly naturally tanned, I think the answer is yes. Heck, it might even be worse for you, because you might start thinking that, because you don't get sunburnt, you won't be at risk. I too work outside all the time (6 days a week), and I catch myself being too complacent at times when I go out, forget to put on sunscreen and only get a minor sunburn, if any. Then again, it might already be too late for me, as I used to get horrible sunburns when I was a child, to the point where my skin would peel off after a few days.
You have lots of natural sunscreen with your heritage. So all the damage that the sun causes is less for you but it still happens, and because of your extreme exposure you will definitely have problems later in life. Problem #1 for you will be aging and wrinkles. Do you want to look 40 when you are 30? Do you want to look 60 when you are 45? Look at other people who have been doing the same work as you but for 10 or 15 years and what they look like, do they wear a hat? ect. Problem #2 skin cancer. This is something that typically causes problems when you are older, very low chance with your heritage but think of where you get most of your sun damage (face) and now imagine a bunch of little scars on your face where they had to remove a skin cancer. Best to wear a hat, and sunscreen (no one wants to look old prematurely).
Uhlbelk Thanks, I wear a visor, gloves, blue jeans, and I’m thinking about wearing long sleeves. So I only need sunscreen on my face? Is 1.5 years of sun to the face too late? I’m 23 but I’m always told I look 16, GameStop won’t believe me without ID.
With your heritage you are just fine. Long sleeves are great, just don't overheat. When picking out sunscreen, test them, find one you like, and like the video says, its best to have both zinc and chemical blocks. Most dermatologists say to reapply every 3 hours, so if you put it on before you start in the morning and after lunch you should probably be fine. When it comes to health, its rarely about doing everything perfect all the time. Its about starting healthy habits when you are young that you continue with for the majority of your life. Drink lots and lots of water or things with no sugar when you are working, kidney stones from dehydration are horrible.
Technically, yes. But it would be absurdly difficult. You would somehow have to position yourself so that you could get long-term exposure to the light reflected off of the moon while simultaneously avoiding direct sunlight. As for how long a term.. there are two factors at play here: How much light gets reflected by the moon, and how much of that light is in the UV spectrum. From some quick Googling, it seems that you get ~14% of the reflected light from a full moon on a clear day, so immediately you'd need 6-7x the exposure time to get an equal amount of light hitting you. Finding the spectrum is a bit more difficult but from what I discovered, it seems that the UV bands are diminished by something like 1/400,000. Assuming those numbers are somewhat correct, you'd need around 2.4 million hours (~274 years) of moonlight to equal one hour of direct sun exposure. Needless to say, while technically possible to get a moon burn, you'd have to be extremely dedicated to manage it.
Food "spoils" because of microorganisms converting food into micropoop. That's why freezing food prevents (or at least significantly slows) spoiling -- the microorganisms are similarly slowed (but many are not killed by cold, so you still have to cook things!) So definitely yes in the shuttles. Perhaps not as fast because they're quite a bit more sterile than Earth, but microoragnisms will still be floating around and it only takes a small number finding a nice piece of bread to start a colony. (That said, it probably doesn't matter since they usually eat prepackaged food rations so that they don't need to deal with kitchens and mess and the such, which would all be kind of bad in zero G.) As for the vacuum.. food definitely wouldn't spoil as you're thinking (if for no other reason than its way way too cold.) But exactly how the vacuum of space would affect it I'm not sure (a lot of it would have to do with how much water was in the food -- remember food is still a bunch of cells, and cells tend to be filled with water and thus likely to burst as the water freezes, which in some foods at least can completely change their texture and their flavor somewhat as well.)
Hey, Today I Found Out UA-cam channel, I think a neat topic would be why the United States uses generic domains like .com, .gov, and .org but other countries use geographic abbreviations such as .ca in Canada, .uk in the United Kingdom, and .ru in Russia.
You didn't mention about people with higher melanin in their skin. Those who tan but don't burn as easily and how the skin cancer chances change for them. (Asking for myself)
For people with dark skin who think they don't need sunscreen/cream, it's still a good idea to wear it to lower your risk of skin cancer. Plus it keeps you looking young bc the sun really ages your skin
It's unhealthy for really dark skinned people living in the north to use sunscreen. 80% of afroamericans in northen states of USA are deficient in vitamin D. Afroamerican men have more prostate cancer than pale skinned american men. So a really bad idea, Kate. Age and bad food makes your skin thinner. And constant eating all day, evry day gives you loose skin. Leafy green vegetables and healthy fats will make your skin thicker and youthful. And 5 hours without food before 8 hours of sleep over a few years will slowly tighten your skin (Autophagy). More will speed it up. You can see this in prisoners of war that has gone without food or people that does long or regular waterfasting. They all have tighter skin afterwards. Age will still be a factor thou.
The skincells comitt suicied in fear of developing cancer from to much radiation. Cancer that can spread to the rest of the body. Or the are orded to buy other cells that controll cellfunction and survival, don't remember exactly.
I'm curious about why some people are more "predisposed" to sun burns than others. I have a friend with very pale, sensitive skin that burns after 10 minutes. Meanwhile, I hardly ever burn, even if I spend an hour or two in the sun (I'm Caucasian). What are the biological mechanisms behind all that? >_>
Bonus fact: anyone, of any skin colour, can get sunburn. Seems silly to have to say it, but it's surprising how many folks I've met who don't realize that ("oh James, you're lucky you don't have to wear sunscreen...") In fact, coloured folks have higher rates of skin cancer because of this misunderstanding. _Edit: some of the other comments are really depressing._
Simon, and Daven, if you both never get out, then I can assure you that your skin is really quite colourful; even more so considering that you might not get out much.
Simon, Daven, and others, if you intend to make videos on topics that are dealt with by government, then maybe see if they can offer a small grant to support you promoting their work. Some government organizations have science supporting their endeavours, and probably need all the public support that they can get. If this is true, then they might be willing to pay a little bit.
What a about people of the past who work outside all day like farmers and ship crew why haven't humans evolved to be protected from the sun or any animal for that reason like pigs and certain types of lizards.
I don't need to be a UA-camr to be inside often I'm a bum It's raining out- I'm inside It's sunny out- in inside There is a awesome party out side- screw you I'm watching TodayIFoundOut videos inside Wow, there is a lot of snow outside- it's time to build a snow man 😀... In Minecraft.
To continue the discussion about sunburns watch this video and discover the answer to the burning question Why Don't Snakes And Many Other Animals Get Sunburned?:
ua-cam.com/video/5RU7J3M56Ug/v-deo.html
If it's raining -> umbrella.
If it's sunny -> umbrella.
Ella, ella, eh eh eh oh oh oh
Derpster bc of air pressure on your ear canals/ drums.
DonD512 You replied to the wrong comment.
Under my arm for ever ever ever eh eh eh eh
I work overnights. I almost forgot this thing you called the sun existed.
more like this. i love everything you guys are doing (and finally signed up as a patron). but i especially love the science ones. keep it up.
Great, now can you do a video about the health benefits of sunlight. Like how sunlight seems to decrease risk of nearsightedness, and how it also seems to effect hormone levels
Very good, informative (as usual), but also helpful episode! Thanks Simon.
I once convinced my sister that if she stood close enough to a campfire she could get a tan. 😂
Went to Cyprus a couple months ago. I'm very pale and can barely tan. When we went, I made sure that I was plastered in factor 50 sunscreen. First day, I got very burnt across my shoulders and chest. It didn't really ruin the holiday, it was great, but needless to say, it made the holiday a lot more uncomfortable than I would have liked. Had to wear a shirt for the whole rest of the holiday, even in the pool.
and that's why I never go on holiday
Harry Williams I always wear t-shirts/ Cressi rash guards while out in the sun and swimming it's because I hate putting on sunscreen lol
Use a thin longsleeved t-shirt and a hat. Sunscreen is only effective for 20 min then you need to reaply more. Many studies has tested sunscreen. Not very effective.
Harry Williams How pathetic. Sun of Righteousness..
Simon, with you around I'm never bored
Simon made an UA-cam insider joke, awesome!
Do a video on the origin of the Grim Reaper. Why a skeleton in a black hooded robe? Why the scythe, a farm tool used for cutting grass and other tall stalky foliage off at the base. That would be quite interesting.
*sun is a deadly lazer*
Tell Me This It's spelled "Laser" and it's an acronym for Light Amplification by Systematic Emission of Rays...so, Bonus Fact!
Yeah.. But then the quote from Bill Wurtz would not be really exact..
edvaira6891, Try "Light Amplification by Stimulated Emission of Radiation"
Here I was thinking the sun is a mass of incandescent gas...
*plasma
Great timing watching this video. I just got back from the dermatologist after having a bit of skin cancer removed. Too many rounds of golf I suppose. BTW....it was not much fun getting a chunk of my face carved out.
I've never seen the point of tanning beds. Who wants to look like a wrinkly piece of leather?
Most people don't get wrinkly so the main reason is not the sunlight. Probably age related and lack of vitamins and minerals. Maybe vitamin F.
Could you do a topic on the phrase "Let the Cat out of the Bag?"
This is what I heard. Don't read it if you don't want to know. :)
It's because there used to be a whip called the cat of nine tails. It was tradition that once the whip was taken out the bag in which it was kept, it couldn't be put back in until someone had been whipped. Thus, once the cat was out of the bag, it was too late to go back on something.
Or move to England where the sun peaks from behind the clouds about once a week.
Love the video! There is a very short list, for me, of diseases that I consider truly insidious. Cancer is in the Top 3.
True, cancer is the second biggest killer in the west after heart attacks, and rising.
But sunlight helps the body produce vitamin D witch protects us from cancer and colds, depression, alzheimers, autism....
If you eat leafy green vegetables evry day and don't eat five times a day (Autophagy+low insulin) your chance of developing cancer i reduced even more. And your much less likely to get the nr 1 killer , heart attack (stroke).
Autophagy is 40% less risk of getting cancer back for people who already had cancer. Really big numbers for something so easy to do.
Low insulin = no diabetes = no stroke.
80% of people who gets stroke have diabetes or prediabetes. That's how you avoid nr.1.
Lowering your insulin levels is also very easy to do.
Tomas Körmark - Thank you.
Hahaha Brilliant channel and writing :D Another winner!
Great video as always!
2nd that
I am a ginger, and I approve of this message.
I approve of gingers. So do what you must to stay the pretty things you are.
Me too. My skin was hurting just looking at the pictures. And I was the bad one who never reapplied sunscreen at the pool like I was supposed to.
Thank you Simon
Simon puts two teaspoons of Sunscreen on his head every day.
I live in a very hot and sunny place. I never ever used sunscreen, even in the desert. I never knew what a sunburn was.
Mechros shut up nigga
...
LordDark102 Well that escalated quickly
Funny you should say "convert to a UA-camr"... :D
I do lots of strenuous hiking at altitude of about 2500-3050 meters (8,200-10,000 feet) above sea level where exposure to UV radiation is even higher. All i wear is SPF 15 (i do apply however ever hour), a hat and sunglasses and im good to go. I used Zinc oxide, never oxybezone.
Cool! Where?
Ray Chang thanks man, here in Southern California, theres lots of trails. We have multiple peaks above 2,500 meters, and the highest topping out at 3,507 meters.
TVinmyEye In Taiwan we have 286 peaks over 3000m. WELCOME!!!! I love hiking.
Ray Chang awesome dude, here is socal we only have about 30 peaks over 3,000 meters. But a 3 hour drive north and we have the Sierra Nevadas which is like California version of the Himalayas lol.
No ads 😍
I don't even see the sun throughout the week due to work hours, only through the occasional window in the warehouse can I see the grey outdoors and busy roads. No time to stop and look.
5:12 boohyah, thanks Simon. Got my new defence for my smoking habit...
Funfact: TiO2 as found in sunblocker is considered to be antimicrobial in combination with sunlight. The reason being is that TiO2 catalysis photoreactions resulting in free radicals which damage the bacteria!
My question now: do they somehow defuse that property of TiO2, or is it just 100x better to have potentially damaging radicals on your skin surface than deep within your cells (and thus far closer to your precious DNA)?
Free radical damage is only a significant problem if it affects the DNA, which is why cells have specific chemicals/enzymes to deal with free radicals. The skin is layers of dead cells on top of dying cells on top of dermal cells that have strong cell membranes and is very good at keeping the outside out. The free radicals formed by TiO2 have no chance of damaging anything important in your skin.
The delay in symptoms has frequently tricked me. I can't tell you how many times I've forgetten to put on the sunscreen and I walk away going "huh, no burn. Maybe my tan's helping me out" before my body goes "psych!" and I wake up redder than the Kool Aid Man.
I've never had a sunburn. Yeah melanin... I guess.
Still, sunscreen is god to wear because of skin cancer. Plus exposure to the sun really ages your skin quickly
You probably have, just didn't realize it. It doesn't show up red on POC's skin.
I have no idea what poc stands for, but fyi I can see when my skin turns red. Besides, I think I'd have noticed the peeling and pain.
I hate tanning, I usually stay in the shade. For the small amount of time that I do have to stay in the sun (like walking to and from the beach), I get tanned very quickly, I don't get red, I immediately get tanned and I get darker after about 30 min under the sun (I can see it with the naked eye).
I never get a sunburn, but I wear SPF 4 if I have to do something out in the sun for a while.
Is there any positive health effects that come from getting burned from the sun? Does it make your skin tougher? Does it help make the skin burn less in the future? Thanks
You are a little less likely to get sunburned in the near future but you should always try to get your sun gradually. If your outside almost evry day that will happen automatically because of the suns going a little bit higher in the sky evry day.
lmao i love how you pronounce capillaries. Porbably normal for you but I have never heard that word pronoucned that way. Greetings from New York.
I only get sunburned when I'm wet :T, I could be in the scorching sun for an hour and maybe only get a slight tan but if I'm in the sun while in the ocean I pretty much get burned instantly, it's pretty much the reason I prefer going to Rivers, much less sunlight.
thank you for the info :)
You're scaring the crap out of me Simon
I wear UV protective clothing and carry a UV blocking umbrella all the time. I hate sunblock.
I just found my sunscreen. It's called "Sunplay (R) SPF 50+ PA+++" It says "Watery Cool" with a picture of two penguins, and then it says "New Solarex-3 technology offers full protection". HAHA, maybe I got ripped off. I bought it at a Watson's store in Taiwan. I live south of the Tropic of Cancer (same latitude as Havana, Cuba.) I stay tan for most of the year and don't burn all that easily, and I've only used the sunscreen for my arms and legs on long motorcycle trips (face not needed, as I wear a full-face helmet). I guess it works....sort of.
I used to have sunscreen that was a slightly-yellow watery paste and greasy. When the sun hits it , my skin had a deep purple haze to it. That was cool. I wish I could remember the brand and try to find it again.
Tanning beds are banned in Australia. Which also happens to be the country with the highest incidence of melanoma in the world.
Studies show that people that use tanning beds have less cancer than people that dont. Talking about all kinds of cancer. Not a huge difference but it shows you that simple logic is not used in the sun scare.
The difference would have been much greater if more then 2% of the sunrays i a tanning bed helped the cholesterol in your skin to produce the essentiall vitamin D.
Just got super burned, but only on a quarter of my face and with a clear division where a hat I wore left my natural, pasty pale flesh safe. Looking forward to that melanoma...
One thing I still don't get is the circumstances of my sunburns. I'm pale white, but I can walk for 1h in plain sun without even getting red, as long as I wear long and rather thick clothes (which don't protect my neck, face or hands). However, when I go swimming I get a sunburn 30% of the time, despite smearing myself with sunblocker every F-ing time I go into the sun. I understand that water removes the sunblocker, but I seem to get most my sunburns in the shadow of trees and parasols (mainly at my legs).
The problem with water is that it reflects UV-rays. So, not only does it wash off your sunscreen, it also exposes you to more UV-rays than if you were to lie on dry land.This is why you get sunburn faster when you're in the water.
Parasols don't protect against UV-rays. They're usually semi-translucent, so if regular light can pass through, UV-rays, which have a smaller wavelength, can pass through pretty much undisturbed.
And shade doesn't protect you against anything. All it does is provide you with a cooler spot than your immediate surroundings. UV-rays can still get through your skin unhindered, so if you forget to put on sunscreen in these two cases, that is why you burn faster.
Thank you. Your explanation makes sense. Do you know anything about the TiO2 dilemma?
TiO2 as found in sunblocker is considered to be antimicrobial in combination with sunlight. The reason being is that TiO2 catalysis photoreactions resulting in free radicals which damage the bacteria!
My question now: do they somehow defuse that property of TiO2, or is it just 100x better to have potentially damaging radicals on your skin surface than deep within your cells (and thus far closer to your precious DNA)?
I'm not an expert in this field, so I can't answer with absolute certainty.
The problem seems to be that these radicals can theoretically penetrate deep within your skin, because of their small size, and cause cancer that way. However, there doesn't seem to be any actual cases in which skin cancer can be traced back to the use of TiO2 in sunscreen, so in that sense, it appears relatively safe.
You can _inhale_ these radicals, though, and that _does_ form a health hazard, so for that reason alone,. the use of it may be discouraged.
I may be oversimplifying it, though, so if you really want to know more, try reading some medical literature on it, or ask an expert.
I'm not so sure about the radicals. Most of them are so unstable that they'll react with the next thing they can find or decompose. Thus, they won't travel far. Sure, quite a number of them are hydrophobic enough to go through the cell-membranes, but the question is how far they go. As a comparison. If you get acid on your skin it sucks, but having the same amount in your blood could kill you.
If you think of Po(OAc)2 (Polonium) is very radioactive, but its radiation does not penetrate deep, thus it's fairly safe in a vial and it most probably won't kill you, if you get it onto your skin, but eating, inhaling or injecting it is a guaranteed agonizing death.
It's funny, but some chemicals are toxic, but yet you can even eat them. AFAIK this holds true for elemental mercury (just don't inhale it) and curare (which is a fast working poison, if it enters the bloodstream).
Had sunburn so badly last year had a little think called hells itch where the burn itches but even if you itch it it'll burn and continue to itch anyway... worst day of my life
How about the intense dangers of sun tan lotion too though. And how the fda has no rules against the chemicals they put in them
Where does the phrase "lets blow this pop[sicle] stand" originate?
Why do your ears pop when you blow your nose while it's plugged?
That would be a version of the Valsalva maneuver. The popping is your Eustachian tube.
The ear has 3 main sections to it. The outer ear includes the pinna (the flappy bits on the sides of your head) and the ear canal. The middle ear contains the smallest bones in the human body, acting as a system of levers passing vibrations on to the inner ear. The barrier between the outer and middle ear is the tympanic membrane, or eardrum, a stretched membrane like the skin of a drum. If the pressure in the middle ear is different from outside, the eardrum will get sucked in or pushed out a bit, and you won't be able to hear as well as the bones (which are connected to the eardrum) won't move as well as they should. To counteract this, the ears pop. This lets air move through the eustachian tube to or from the middle ear to balance the pressure. This tube is connected to your ears and your throat (roughly). When you pinch your nose and blow, you force air out of your lungs and increase the pressure in your mouth and nose and along the tube. The valve at the end of the tube thinks there's a pressure difference between your eat and the air, so pops open to allow this the balance out.
As an aside, when you have a cold, the tube can get blocked and your ears can become unable to pop, which is why your hearing sometimes goes dull and your ears (eardrums) can hurt. Hope that helps :)
andymcl92 Interesting
andymcl92 It does indeed
Little gremlins that live in your ears build walls to protect from outside enemies, giving you the blocked ear feeling. When they detect activity around your nose - such as it being blown - they mistake it for their enemies trying to flank them, so they break down their walls so that they can escape.
How is the absorption of Vitamin B differ when these compounds designed for protection from UV-A and UV-B are applied? Not suggesting it is a reason to burn yourself, just a curiosity.
Best part about a sunburn? Hells itch! Makes you completely forget about the burn and focus on the itch.
I think you could have went a little bit more into what happens after you get sunburn. Skin peeling and stuff like that. Still an enjoyable video though :P
I could never understand why so many people seem to hate sunscreen so much. I always liked putting it on. It's no different than any other type of perfumed skin lotion. Coppertone is my favorite. That's the smell of summer, right there. It brings back good memories.
Yeah, I love the scent of it, too. Reminisces of childhood days at the beach. But getting it to my skin is a completely other story. I hate the feeling of stickiness it lefts you with, and all the sand it gathers with the wind, and the fact that you have to reapply it every couple hours or every time you go to the water. It's a necessary nuisance.
The problem is what in some of them, not all and that it's only effectiv a very short time. A study from a few years back said only 20 min. Hopefully the new ones are little bit better. But still much better to ware a thin longsleeved t-shirt untill you developed a tanned skin.
They work a lot longer than 20 minutes.
My mum died of skin cancer. She didn’t smoke or drink and didn’t use sunbeds.
Quick question if I have high melanin in my skin would that stop me from all these affects
No. It would reduce the effects, but not stop them. Even people with the darkest of skin need to be cautious if they're spending excessive amounts of time in the sun. (Never mind things like heat stroke and dehydration that have nothing to do with your skin pigments and can affect anyone fairly equally if they don't take precautions.)
Yes, melanin is natures defence against strong sun rays. But you shoul always expose yourself for the sun gradually over a few weeks.
I need this man as my husband.
I work 8 hours a day, 5 days a week outside and have never gotten a sunburn and hate the feel of sunscreen, should I still use it? I’ve been working outside for 1 and a half years now, and it’s my first job.
Assuming you're white, or only slightly naturally tanned, I think the answer is yes. Heck, it might even be worse for you, because you might start thinking that, because you don't get sunburnt, you won't be at risk.
I too work outside all the time (6 days a week), and I catch myself being too complacent at times when I go out, forget to put on sunscreen and only get a minor sunburn, if any.
Then again, it might already be too late for me, as I used to get horrible sunburns when I was a child, to the point where my skin would peel off after a few days.
Lord of Fire I’m Hispanic and my skin has been tanned darker now.
You have lots of natural sunscreen with your heritage. So all the damage that the sun causes is less for you but it still happens, and because of your extreme exposure you will definitely have problems later in life. Problem #1 for you will be aging and wrinkles. Do you want to look 40 when you are 30? Do you want to look 60 when you are 45? Look at other people who have been doing the same work as you but for 10 or 15 years and what they look like, do they wear a hat? ect. Problem #2 skin cancer. This is something that typically causes problems when you are older, very low chance with your heritage but think of where you get most of your sun damage (face) and now imagine a bunch of little scars on your face where they had to remove a skin cancer. Best to wear a hat, and sunscreen (no one wants to look old prematurely).
Uhlbelk Thanks, I wear a visor, gloves, blue jeans, and I’m thinking about wearing long sleeves. So I only need sunscreen on my face? Is 1.5 years of sun to the face too late? I’m 23 but I’m always told I look 16, GameStop won’t believe me without ID.
With your heritage you are just fine. Long sleeves are great, just don't overheat. When picking out sunscreen, test them, find one you like, and like the video says, its best to have both zinc and chemical blocks. Most dermatologists say to reapply every 3 hours, so if you put it on before you start in the morning and after lunch you should probably be fine. When it comes to health, its rarely about doing everything perfect all the time. Its about starting healthy habits when you are young that you continue with for the majority of your life. Drink lots and lots of water or things with no sugar when you are working, kidney stones from dehydration are horrible.
I never get burnt what's the reason for that??
Gradual exposure to the sun. Good food with vitamin F and good cholesterol. The right skin tone for where you live.
But can you get moon burn?
Technically, yes. But it would be absurdly difficult. You would somehow have to position yourself so that you could get long-term exposure to the light reflected off of the moon while simultaneously avoiding direct sunlight.
As for how long a term.. there are two factors at play here: How much light gets reflected by the moon, and how much of that light is in the UV spectrum. From some quick Googling, it seems that you get ~14% of the reflected light from a full moon on a clear day, so immediately you'd need 6-7x the exposure time to get an equal amount of light hitting you. Finding the spectrum is a bit more difficult but from what I discovered, it seems that the UV bands are diminished by something like 1/400,000. Assuming those numbers are somewhat correct, you'd need around 2.4 million hours (~274 years) of moonlight to equal one hour of direct sun exposure. Needless to say, while technically possible to get a moon burn, you'd have to be extremely dedicated to manage it.
Depends on how hard you smack that ass...
I remember an episode of Adams family where Uncle Fester got one! lol
I'm one of those people with sensitive skin. I can get sunburn in a cloudy day.
Have you even seen the Mighty Boosh?
So why does skin peel after a sunburn?
pskarnaq73 the top layer of skin is destroyed and therefore peels off because it's dead
Why are peppermint and spearmint named what they are? I'd hardly associate either one of them with spears or peppers.
Can food go bad in space, both in the vacuum of space or just in the shuttles in general? Would the food ever spoil in these conditions?
Food "spoils" because of microorganisms converting food into micropoop. That's why freezing food prevents (or at least significantly slows) spoiling -- the microorganisms are similarly slowed (but many are not killed by cold, so you still have to cook things!)
So definitely yes in the shuttles. Perhaps not as fast because they're quite a bit more sterile than Earth, but microoragnisms will still be floating around and it only takes a small number finding a nice piece of bread to start a colony. (That said, it probably doesn't matter since they usually eat prepackaged food rations so that they don't need to deal with kitchens and mess and the such, which would all be kind of bad in zero G.)
As for the vacuum.. food definitely wouldn't spoil as you're thinking (if for no other reason than its way way too cold.) But exactly how the vacuum of space would affect it I'm not sure (a lot of it would have to do with how much water was in the food -- remember food is still a bunch of cells, and cells tend to be filled with water and thus likely to burst as the water freezes, which in some foods at least can completely change their texture and their flavor somewhat as well.)
Hey, Today I Found Out UA-cam channel, I think a neat topic would be why the United States uses generic domains like .com, .gov, and .org but other countries use geographic abbreviations such as .ca in Canada, .uk in the United Kingdom, and .ru in Russia.
You didn't mention about people with higher melanin in their skin. Those who tan but don't burn as easily and how the skin cancer chances change for them.
(Asking for myself)
Is there a type of UV ray (or anything else that can tan your skin) that does not increase the risk of having cancer?
Z0MG H4X fake tan or bronzer
For people with dark skin who think they don't need sunscreen/cream, it's still a good idea to wear it to lower your risk of skin cancer. Plus it keeps you looking young bc the sun really ages your skin
It's unhealthy for really dark skinned people living in the north to use sunscreen. 80% of afroamericans in northen states of USA are deficient in vitamin D. Afroamerican men have more prostate cancer than pale skinned american men.
So a really bad idea, Kate.
Age and bad food makes your skin thinner. And constant eating all day, evry day gives you loose skin.
Leafy green vegetables and healthy fats will make your skin thicker and youthful.
And 5 hours without food before 8 hours of sleep over a few years will slowly tighten your skin (Autophagy). More will speed it up. You can see this in prisoners of war that has gone without food or people that does long or regular waterfasting. They all have tighter skin afterwards. Age will still be a factor thou.
do the garlic thing.
slow reflexes.
Why does the skin peel off afterwards
Matt Schilling it's dead
I know what happens, I felt he missed an opportunity covering it in the video
The skincells comitt suicied in fear of developing cancer from to much radiation. Cancer that can spread to the rest of the body. Or the are orded to buy other cells that controll cellfunction and survival, don't remember exactly.
I'm curious about why some people are more "predisposed" to sun burns than others. I have a friend with very pale, sensitive skin that burns after 10 minutes. Meanwhile, I hardly ever burn, even if I spend an hour or two in the sun (I'm Caucasian). What are the biological mechanisms behind all that? >_>
Bonus fact: anyone, of any skin colour, can get sunburn. Seems silly to have to say it, but it's surprising how many folks I've met who don't realize that ("oh James, you're lucky you don't have to wear sunscreen...") In fact, coloured folks have higher rates of skin cancer because of this misunderstanding.
_Edit: some of the other comments are really depressing._
The dude's back at 3:10 reminds me of an Easter Island head
Truly terrifying.
The sun affects us differently never have I gotten sun burn nor use sun screen
I always wear a hat when I go outside. I like looking like a cowboy. :D
How the sun, a HUGE ball of fire, burn you? Okay.
Simon, and Daven, if you both never get out, then I can assure you that your skin is really quite colourful; even more so considering that you might not get out much.
just move to the UK.
You are now the british Vsauce
So was skin cancer way more popular in early human history?
Baby face Simon sent me here. Australia banned all tanning beds.
Simon, Daven, and others, if you intend to make videos on topics that are dealt with by government, then maybe see if they can offer a small grant to support you promoting their work. Some government organizations have science supporting their endeavours, and probably need all the public support that they can get. If this is true, then they might be willing to pay a little bit.
What a about people of the past who work outside all day like farmers and ship crew why haven't humans evolved to be protected from the sun or any animal for that reason like pigs and certain types of lizards.
Because with modern science we've stopped evolution.
Sun of Righteousness. Melanin. Malachi 4.
I work overnight shift, from my basement. I haven't seen the sun in months...
warcraft?
Lol, I love this
No wonder sunlight is deadly for vampires
cap ill aries :) gotta love it.
So, add the sun to the long list of natural phenomena that want to kill me. Got it.
3:49 THIS IS WRONG ITS A LIKE A EARTHQUAKE SCALE OMFG
Ahahah ! In UK there's no need of suncream ... there's no sun :D
im not first, I know I'm not
when i was two I slept in a cot
this poem makes absolutely no sense
now let me impale myself with a fence
He’s a poet
Don’t know it
Got two feet
But they don’t show it
aaple
Let's make this thread go!
Oh shit I just made a haiku!
No not really.
Roses are red,
Violets are blue.
This poem doesn't rhyme.
I like pizza.
I have never understood the pleasure of sunbathing.
Or you could just go live in the UK where gray rainy weather results in beautiful unsun damaged skin naturally.
This would have been more timely a few months ago. Unless you live in Australia!
I laugh at all the people going "outside". Ohohoho.
None of us are getting out of this alive...
The sun is trying to kill all of us? LOL
that shirt is too tight. poor button is under so much stress.
Apparently the sun should be regulated by the FDA.
I burn very quickly, but within 24 hours it turns tan.
Then there's the Irish, we get get burned by the moon (I'm not Irish, but the the majority of my family is of Irish decent)
I don't need to be a UA-camr to be inside often
I'm a bum
It's raining out- I'm inside
It's sunny out- in inside
There is a awesome party out side- screw you I'm watching TodayIFoundOut videos inside
Wow, there is a lot of snow outside- it's time to build a snow man 😀...
In Minecraft.