Cardiovascular System 3, Heart, electrical system

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  • Опубліковано 25 гру 2024

КОМЕНТАРІ • 717

  • @karlysovereign3492
    @karlysovereign3492 5 років тому +790

    Does anyone else listen to Dr. Campbell and feel instantly calm and genuinely interested in whatever content he's talking about? So grateful for him!

    • @AfridiZindabad
      @AfridiZindabad 5 років тому +8

      He answers all the questions in his lectures, that I had which were tripping me up (so I couldn't move on mentally to the rest of the chapters).

    • @carolyn3746
      @carolyn3746 5 років тому +3

      Absolutely! Studying my ALS2 was less stressful thanks to this amazing Dr.

    • @LaSorciereFeuillue
      @LaSorciereFeuillue 4 роки тому +1

      Ditto!

    • @YSC2013
      @YSC2013 4 роки тому

      Karly Sovereign I do too

    • @YSC2013
      @YSC2013 4 роки тому +1

      He sure is wonderful teacher

  • @jeanm3616
    @jeanm3616 Рік тому +60

    I only now, in 2023, watched this stunning lecture. Better than any of the anatomy semesters I endured. I thank you, Dr. Campbell, for sharing your knowledge with ALL of us. I have been enjoying watching your posts for only a few years, having missed this particular one. Again, many thanks sir.

    • @TracysavedbyChrist
      @TracysavedbyChrist Рік тому

      Ditto. Just stumbled upon it and first thing I saw was no glasses.

  • @shabnumrashid5240
    @shabnumrashid5240 8 років тому +371

    one of the best teachers on UA-cam hands down

  • @hakosupra7550
    @hakosupra7550 2 роки тому +51

    Can I just say this is absolutely astounding. 6 lectures worth of learning objectives covered in 3 videos so far, I can’t thank you enough Dr Campbell

  • @collywobs
    @collywobs Рік тому +12

    Yes it is his calm articulate voice.After listening to him I feel quite relaxed and refreshed. If I was a patient of his I could face anything as long as he was there to explain the situation. I entered Medical School 50 years ago,I’m 73 now. I just love listening to these talks.

  • @paulaswitzer2095
    @paulaswitzer2095 8 років тому +158

    I "heart" you!!! Thanks for being a teacher instead of a presenter. Most professors etc just present the material instead of teach!!! None of us learn from just a lecture.. No one really pays attention... I cannot wait to watch the rest of your videos.. !!

    • @qazizahor7080
      @qazizahor7080 5 років тому +1

      I heart you too

    • @randomperson537
      @randomperson537 5 років тому +3

      I agree. Dr. Campbell is an excellent teacher.

    • @CinnamonDelight-xb8pl
      @CinnamonDelight-xb8pl 5 років тому +3

      Thank you for teaching so competently.

    • @lyetaherb4703
      @lyetaherb4703 4 роки тому +1

      That's wonderful. Because these Bio prosecutors today are full of Malarkey. They don't have the first clue about teaching a subject! Straight TRUTH!!!

    • @aazamkhan8681
      @aazamkhan8681 4 роки тому +1

      I also

  • @steveholmes161
    @steveholmes161 2 роки тому +8

    I feel like when I’m listening to this, he’s talking just to me. It’s as if we’re having a conversation. But I’m being quiet for about 20 minutes or so. It seems so personal and comfortable. Excellent!

  • @adrimontemayor3234
    @adrimontemayor3234 3 роки тому +9

    I recently started working as a Spanish-English medical interpreter. Your videos have been an amazing tool to familiarize with vocabulary. Thank you Dr. Campbell.

  • @sansamman4619
    @sansamman4619 4 роки тому +8

    When I usually see a smart person I feel guilty and think to my self “I have been wasting too much time, I should be smarter!! “ which stresses me out and doesn’t help. But when I see you I feel like you are telling me “Hang in there buddy, just give it your all” which encourages me to study more. I love you doctor, you don’t know how much you have helped me

  • @patricesekanyambo284
    @patricesekanyambo284 5 років тому +33

    Teaching is a gift indeed not just the level of knowledge. You can even see how passionate Dr. John is, just wonderful . God bless you Dr. I do not know why it took me so long to find you on here.

  • @rosegallus4048
    @rosegallus4048 5 років тому +31

    I can't thank you enough!
    I have never been able to properly understand the electrical conduction in the heart, until today.

  • @martipascual7413
    @martipascual7413 7 років тому +24

    Thank you so much! I worked as an RN in the hospitals for 10 years then stepped out of my career to be a full-time mom for the last 12 years. I found your videos while I was looking for ways to refresh my memory before heading back into the workforce. How I wish I would have had access to your teachings while in nursing school over 20 years ago. Your explanations are so basic and thorough, that I'm not only remembering, but also learning new information. You have a way of speaking that makes everything easy to understand.

  • @kimberleydsouza9813
    @kimberleydsouza9813 8 років тому +129

    Dr. John Campbell your videos are so amazing !!!! you explain concepts so clearly !!!! I honestly used to HATE to study about the heart but thanks to you and your amazing videos I now find studying about the heart so interesting!!!!! Thank you so so so so so so much. Please keep making amazing videos like this. Much appreciation and gratitude. xx

    • @Zazezoo
      @Zazezoo 5 років тому +2

      I used to Hate it too, and found it complex and boring.
      Now I'm enjoying it so much, cos everything makes so much sense.

    • @nilanabijan9705
      @nilanabijan9705 3 роки тому +2

      I swear to God me too! after his explanation I used to love HEART

  • @patiencekalua5650
    @patiencekalua5650 2 роки тому +2

    My goodness I've heard this cycle explained so many times and NEVER comprehended anything really but now i can actually explain to someone without looking at the notes. Thank you Dr Campbell you're God's send and you're helping create future Drs and Nurses

  • @chileuwachidozie7496
    @chileuwachidozie7496 3 роки тому +5

    I am not a student of medicine, I am a first aider. I can now explain this to a medical student while sleeping...thank you Dr. Campbell.

  • @rasikakurupitage4100
    @rasikakurupitage4100 3 роки тому +10

    I accidentally found this video of this great pleasant person Dr. Campbell and so grateful to him. I got a very wonderful worthy knowledge about the cardiovascular system. Very understandable. Many more thanks to you Sir ❤️💙😘. Have a long life to teach us more.! 💐🌻🍄🌺🌹🌸💮🌼💓💛💚💜

  • @heatherpeterson3610
    @heatherpeterson3610 6 років тому +3

    As a homeschooling family...we thank you for sharing your gift of teaching. You are our favorite teacher. It is so easy to understand you.

  • @jaddapuss
    @jaddapuss 8 років тому +74

    Best explanation I've seen ever! Even an idiot like me can grasp the essential info.....Thank You so much.

    • @Campbellteaching
      @Campbellteaching  8 років тому +28

      +jaddapuss If you have understood all of this, trust me, you are not cognitively challenged. Physiology is difficult and highly conceptual.

    • @jaddapuss
      @jaddapuss 8 років тому +16

      +Dr. John Campbell Thank you so much, I was even dreaming about pulmonary veins last night!

  • @kandicekrucina6988
    @kandicekrucina6988 6 років тому +15

    I just want to say, you have the BEST videos!! The only way I completely understood the heart was by watching all of your cardiovascular videos!
    THANK YOU A MILLION TIMES!! 🙏

  • @mr.potatoseedidk1129
    @mr.potatoseedidk1129 2 роки тому +1

    This doctor is the best. I am now starting in nursing and reading the books I was having difficult in understanding but when I listen to these videos from this doctor if really feel calm and I pass my exams. He is the best.

  • @lberry750
    @lberry750 10 місяців тому +1

    This was the best explanation of the cardiac electrical system I’ve heard. Thank you, Dr. Campbell.

  • @ms-jm8jl
    @ms-jm8jl 3 роки тому +1

    As a layman, I did know something abt the heart and how it functions. After listening to your lectures, I'm amazed at how you've simplified the way the heart functions
    without compromising on clarity. I can listen to your lectures over and over again and always learn something new. Every time I listen to a lecture, your passion for the subject makes for delightful listening. I only wish I had found you sooner. Thank you, Dr.Campbell

  • @sandrapuckett7068
    @sandrapuckett7068 Рік тому

    I love watching his videos- he explains things so precisely and doesn't throw in nonsense. This is how you truly learn! I've been a nurse for 28 years-learning never stops! Thank you Dr Campbell.

  • @adewaleolanrewaju3185
    @adewaleolanrewaju3185 5 років тому +8

    Dr Campbell makes teaching looks easier than drinking water🙈 Absolutely the best teaching on you tube

  • @NAMUZAKASAMSIBULO
    @NAMUZAKASAMSIBULO 8 днів тому +2

    Team 2024 enjoy this wonderful teacher all the way from Uganda❤

  • @jackedwards9790
    @jackedwards9790 6 років тому +13

    thank you for keeping these videos up even years later, amazing work, truly a great professor.

  • @desdinnes7593
    @desdinnes7593 5 років тому +8

    I got no words to say thank you. I have a huge smile every time I watch your videos...so happy

  • @narelledarby1493
    @narelledarby1493 5 років тому +9

    What a fantastic presentation of the cardiac conduction system. Taught me more than any of my text books or lectures in my nursing degree

  • @jilldelzer9456
    @jilldelzer9456 6 років тому +39

    This is an excellent presentation and well explained. I appreciate your method of teaching and find this to be so helpful!

  • @dopiaza2006
    @dopiaza2006 4 роки тому

    As a non medical person with a heart attack 6 years ago, this has been the best video I've seen yet to explain why I get PVCs, and most importantly, why they aren't as dangerous as they feel. I wholeheartedly (!) thank you!

  • @kargbomoses5067
    @kargbomoses5067 3 роки тому +1

    Dr Campbell is one in a billion..He makes life very simple for us in terms of this aspect…Thanks very much sir.

    • @jackiepaul6712
      @jackiepaul6712 3 роки тому

      Thanks to Dr jonathan he cure me of Herpes virus few weeks back. Dr jonathan treat and cure so many disease and virus with his herbal medicine.like kidney, HIV, HERPES Cancer Hepatitis Hiv/aids Pcos Fibroid COPD hepatitis b ,cancer, fibroid.diabetic herpes infection.aids .enlargement prostate.low sperm count ,pregnant problem. all can of disease and virus e.t c... email Drjonathan jp178884@gmail.comor WhatsApp him ‪+2347016240310

  • @annesanga3566
    @annesanga3566 2 роки тому +2

    I am year one student, l had lecturer 2 days ago l didn't get much so l came home and started listening to him. I am grateful and thank God for your teachings.

  • @sayanticachakraborty7388
    @sayanticachakraborty7388 6 місяців тому +1

    You are the best teacher I have come across on UA-cam. Thanks Dr.!❤

  • @tvtoothqueen2195
    @tvtoothqueen2195 4 роки тому +3

    How could anyone dislike this video? It's pure gold! Thank you so much Dr. Campbell!!! :)

  • @abcindyefgh_4569
    @abcindyefgh_4569 5 місяців тому +1

    I am currently taking an Introduction to Cardiovascular Nursing course, which made me understand our lessons more. Thank you so much.

  • @hosamhmoud5801
    @hosamhmoud5801 8 років тому +15

    The best physio explanations ever, thank you Dr. Campbell!

  • @constantejimofor9213
    @constantejimofor9213 Місяць тому

    I've Listened to Lecture 1, Lecture2 and now lecture3.
    Listening and learning from Nigeria. 🇳🇬
    There's a sense of soothing serenity, tranquil, and quiescence, that follows your lectures. Feels like a teaching Made from heaven.
    Who else agrees? ✋🏼

  • @tammy6973
    @tammy6973 4 роки тому +3

    I am very confident in my studies because of you. Thank you. You are an excellent educator and make everything clear and easy to understand. Bless you.

  • @ingriddawson4102
    @ingriddawson4102 4 роки тому +3

    Incredible. This man is a wonderful teacher in a fascinating and complex subject. Thank you Dr. Campbell.

  • @vickychristenson543
    @vickychristenson543 8 років тому +2

    Can not thank you enough! Was worried, you have set my mind at ease about A&P and the Cardiovascular System. Thank you, thank you, thank you! 20 plus years in the medical field and you have given me an understanding I can grasp and understand completely!

  • @lindanambahu1142
    @lindanambahu1142 3 роки тому +16

    As a med student that doesn’t really like Cardiology😬, I am grateful for these amazing videos. Thank you so much Dr💯

  • @bijunair2573
    @bijunair2573 6 років тому +6

    The best explanation ever.. Though i came here for no reason, I have learnt a lot from this series. I am not a medical professional. You made my day.

  • @natures_hub_007
    @natures_hub_007 9 місяців тому +2

    Soothing and relaxing way to deliver lecture, I do always enjoy❤❤❤❤

  • @mayraguzman2743
    @mayraguzman2743 6 років тому +55

    Awesome teacher i learned in one day what i learn in a Month

  • @leebosward7699
    @leebosward7699 7 років тому +1

    My lectures for physiology are almost pointless! Its all about the ego of those lecturing not the students. Your presentations are an absolute life saver. I got full marks on the quiz thanks to you!!

  • @mightymagnum8811
    @mightymagnum8811 2 роки тому +1

    How can anyone believe this system evolved? It's incredible!

  • @onganiamanzi7185
    @onganiamanzi7185 6 років тому +4

    you are one of the best teachers on earth.

  • @annamariathemeli9646
    @annamariathemeli9646 6 років тому +1

    Doctor it the best explanation I have ever seen you give such hope to us who want to know more about our illness you are a light to this world may you be blessed as God will keep you safe to teach us poor people who don't understand much because other doctores don't want us to know
    Thank you
    Anna themeli

    • @Campbellteaching
      @Campbellteaching  5 років тому

      Bless you Anna, believe me that is enough for God to bless you and your situation.

  • @shashimoghe3920
    @shashimoghe3920 5 років тому +14

    Dr Campbell you are genius learned like your explaining the whole electric system of the heart so easily thanks and regards. 17/12/2019

  • @engin7787
    @engin7787 6 років тому +2

    Exciting ,extraordinary scientific knowledge handed down from the previous generation to us, makes me humble and thankful .Thank you ,Dr John Campbell !

  • @twahaahmed9681
    @twahaahmed9681 5 років тому

    DR.JOHN UR THE BEST TEACHER I HAVE LISTEN TO.I AM JUST AN ORDINARY PERSON WITH NOTHING TO DO IN MEDICAL STUDIES BUT I SIMPLY FEEL I CAN UNDERSTAND YOU VERY WELL .I CAN DRAW THE HEART WHILE I HAVE CLOSED MY EYES AND EXPLAIN HOW IT WORKS.AFTER FOLLOWING YOUR LESSONS I FIND IT EASY .MAY ALLAH BLESS YOU .YOUR THE BEST TEACHER .

    • @Campbellteaching
      @Campbellteaching  5 років тому

      Thank you Twaha, may God bless you also. What is your current job?

    • @twahaahmed9681
      @twahaahmed9681 5 років тому +1

      Hi doctor I am a simple business man .thanks for your useful n helpful videos.

  • @okotpatrickdaniel1248
    @okotpatrickdaniel1248 2 роки тому

    I'm now convinced beyond, I had never understood this before but now I've. I'm humbled. Congratulations to Dr Campbell God bless you.

  • @jamesthorpe7779
    @jamesthorpe7779 4 роки тому +4

    I’m glad i found your channel. Such clear explanations. Giving myself a refresher before i start my job on CCU and your channel is doing more than this. Why you have dislikes for your videos is beyond me. Keep up the good work!

  • @dragos_01
    @dragos_01 6 років тому +11

    Why is so simple when you teach? Fenomenal!

  • @patriciamoraru4828
    @patriciamoraru4828 4 роки тому

    Hello from a romanian girl . Thank you for this video . Now I finally understand the heart and the macanism ! I really appreciate you , your job , and the effort.

  • @behzadsaberi3652
    @behzadsaberi3652 3 роки тому

    Dr Campbell, I cannot thank you enough. What you are teaching is God will bless you. I am so glad that I found your videos here. Please have more lesson about Digestion system. God bless you Dr Campbell

  • @gbadealabi3443
    @gbadealabi3443 Рік тому

    I wanted to know about circulatory system and here is Dr. Campbell making it do simple to understand. Thank you and God bless you.

  • @srishtichandel4033
    @srishtichandel4033 4 роки тому

    Dr. John
    I can hardly thanks to you for making Human physiology so Effortless 💫🤸‍♀

  • @dr.richmondakwasiowusu4315
    @dr.richmondakwasiowusu4315 3 роки тому

    Best medical teacher I ever met.Just came across your videos.It really pains me that all these years I didn't know abt your channel. I would be a better a student that what I was.God bless you

  • @tiffanymareeobrien
    @tiffanymareeobrien 4 роки тому +3

    You have made my life so much easier!!! struggling with online uni!! thanks Dr.

  • @paulcrooks4467
    @paulcrooks4467 5 років тому +18

    I'm just beginning to understand this after studying for years in the USA

    • @tomjohnson5810
      @tomjohnson5810 5 років тому

      Paul Crooks hi, do you study medicine there in university ?? I would be grateful if you help me with few infos because im interested in moving to finish my studies in usa or canada.

  • @vivianpeterson8188
    @vivianpeterson8188 7 років тому

    Dr. John Campbell, you are indeed a great Teacher with exceptional good explanation. You simplified everything about cardiovascular system. Thank you so much Doctor

  • @alannahhouston4610
    @alannahhouston4610 4 роки тому +5

    You’re awesome Dr. Campbell! You’ve really helped me with my revision for my A&P exam - especially the heart and lungs.

  • @rocioperez7883
    @rocioperez7883 2 роки тому +2

    I am starting my third semester in nursing. I should have known all this information by now, however it is the first time i really understand about the heart. I wish I have found Dr Cambell before, which I believe would have changed my low grades a lot. Thank you Dr Cambell, YOU ARE AWESOME!! I hope you also have farmacology classes as well.

    • @resurgem
      @resurgem 2 роки тому

      He really brings it to life, so to speak, I think his arm movements help too! I love cardiology!

    • @chiherawacho
      @chiherawacho Рік тому

      He has made me enjoy Biology ❤

  • @lpasternak3096
    @lpasternak3096 4 роки тому

    Dr. Campbell, Thank you so much! You are, without a doubt, the 2nd best teacher, Jesus Christ being the best, of course. Thank you for your explanations. I do believe I will be able to pass my nursing exam after watching the videos. Please do not stop teaching us. You make me feel so calm and genuinely interested by your presence and humility. You are anointed to teach us. Once again, thank you. Kindest regards, Leta Pasternak

  • @sylvestertolgei5855
    @sylvestertolgei5855 Рік тому

    The best instructor ever in my academic journey.

  • @user-kh2ud4mk8v
    @user-kh2ud4mk8v 4 роки тому

    Why can't all lectures be like this 😩 Dr Campbell thank you for being a gift to us all.

  • @jayanshkidzzone7055
    @jayanshkidzzone7055 3 роки тому

    A big salute to the best teacher in the world....love from 🇮🇳

  • @kas06chi18
    @kas06chi18 4 роки тому +2

    Anytime I want to learn/refresh myself on anything anatomy related you’re the person I go to Dr. John Campbell. I remember watching the younger version of the Dr. teach haha. Stay healthy!

  • @josphinesilgich9593
    @josphinesilgich9593 Рік тому

    Sometimes I feel like giving up medicine, but when I listened to your lectures it keeps me going, thank you

  • @qazizahor7080
    @qazizahor7080 5 років тому +5

    You have explained it very simply. I have to appreciate.Good job

  • @kisakyeelizabeth2579
    @kisakyeelizabeth2579 Рік тому

    I got to listen to you Dr John Campbell one month back and i really enjoy ur lectures, hw i wish u educate us with all the biology we have ever heard, u are a great teacher, thanks alot❤

  • @gertrudeakitipa9960
    @gertrudeakitipa9960 5 років тому +4

    You are awesome, your presentation is so very well understood, and I heart it. May the good LORD Richly Bless You. From PNG

  • @shriomkumar7028
    @shriomkumar7028 4 роки тому

    The best teacher of biology on youtube

  • @becirmidovicmidovic5391
    @becirmidovicmidovic5391 8 років тому +3

    DEAR DR CAMPBELL. I AM ON PHARMACOTHERAPY SPEC. AND YOUR PRESENTATIONS ARE VERY USEFULL TO ME. YOU ARE ONE OF THE BEST PROFESSOR EVER. YOU ARE TREASURE OF KNOWLEDGE AND YOU GIVE US KNOWLEDGE FOR LIFETIME.
    THANK YOU VERY MUCH.
    MARIJA

  • @misskay1098
    @misskay1098 3 роки тому +2

    @Dr. John Campbell, you're by far the best teacher I've come across. Congratulations on the good job you're doing here... You've definitely earned a new subbie 🇰🇪

  • @simiranbebbran8046
    @simiranbebbran8046 4 роки тому +1

    A really one kind and unique ❄ , caring and absolutely simple, and mindful lecture of Beloved lecturer Dr. John Campbell

  • @rwess
    @rwess 8 місяців тому

    Just amazing - both the evolution that created the heart, and the evolution that created such a great teacher.😁
    Thanks for teaching me a lot!

  • @ayebalemedrine6923
    @ayebalemedrine6923 4 роки тому +1

    Dr you so elaborate and more clear making it easy for us learners to perceive information thanks so much may God bless you

  • @mlcs179
    @mlcs179 6 років тому +6

    Dr John thank you so much for such clarity ! you are a fantastic teacher.

  • @verahamenya3801
    @verahamenya3801 2 роки тому

    Thanks alote Dr John your presentation are a blessing to yours may good lord protect you and keep blessing your household

  • @g0dfreykibona673
    @g0dfreykibona673 5 років тому +4

    This is great delivery of materials,thanks millions times Dr

  • @premanandmurugan5592
    @premanandmurugan5592 8 років тому +3

    I AM A GENETIC GRADUATE, ACTUALLY I FOUND IT HARD TO STUDY PHYSIOLOGY , AFTER WATCHING YOUR VIDEOS , PHYSIOLOGY LOOKS MUCH CLEARER, THANKS..

  • @kessienaerebi341
    @kessienaerebi341 3 роки тому +1

    Thank you Dr John, you make it so easy to understand!

  • @ngendahimanacyprien4103
    @ngendahimanacyprien4103 7 років тому +5

    extremely intelligent lecturer, I do really Like your lessons because you upgrade my academic skills

  • @biological5142
    @biological5142 3 роки тому +1

    Why didn't I come across this video 5 years ago !?
    What an amazing & simplified way to teach sir 🙏
    Take my regards

  • @XuyinHitomi
    @XuyinHitomi Рік тому

    I love his teaching, i wish to always be notified when ever he’s teaching or better, be seeing it live.

  • @thebomb7534
    @thebomb7534 4 роки тому +3

    I am so grateful for your lessons dr john campbell you have helped me a lot !

  • @franceshopkins7726
    @franceshopkins7726 3 роки тому +1

    I’ve only just discovered you. Thank you for your great lectures, so much better than reading a text book to a mature nurse.

  • @angelu__3059
    @angelu__3059 5 років тому +1

    Ive been passing my tests bc of u Dr. Campbell, u never let me down thank God He made u 😫😫

  • @onyxnatural1797
    @onyxnatural1797 2 роки тому +1

    Oh my God! You're indeed a teacher.Am so glad I stumbled into this in preparatory period and am sure with this, I will make you proud in my cardio exams.I will say to them 💪 "I listened to DR. JOHN CAMPBELL"

  • @caribaez5711
    @caribaez5711 3 роки тому

    Dr. Campbell is so good at physiology. I like his teaching very much. God bless him. 🤗😇

  • @futurenow8941
    @futurenow8941 2 роки тому

    It's brilliant the way God has designed the heart and how could you think it developed by itself. Very well illustrated video.

  • @poliver12345
    @poliver12345 4 місяці тому +1

    Thanks Dr. JOHN Campbell. Magnificent explanation. Wealth. Of knowledge given by yourself better than. Most lecturers. At college. That's so much for your clear. Concise. Information ..😂

  • @AloyoKevin-m6p
    @AloyoKevin-m6p Рік тому

    Doctor you're wonderfully gifted and so inspirational to some of us who are amateurs in the field
    Thank you so much for the lecture
    Anatomy made easy for me for real

  • @sajaabudagga2637
    @sajaabudagga2637 5 років тому +3

    thank you so much for this amazing video , your students are the luckiest

  • @SimonSamwel-id9gn
    @SimonSamwel-id9gn Рік тому

    Thank you so much dr campbell for your videos am a medical student and you help us a lot thank you soo much and may GOD bless you much,

  • @jeffeniababona6531
    @jeffeniababona6531 4 роки тому

    Dr John Campbell, you such an amazing lecturer I salute you for the very helpful detailed video. After watching your video I fully understand it. Keep up the good work and may the good Lord above continue to bless your commitment and effort. Thank you very much!!

  • @sthembilemasilela8846
    @sthembilemasilela8846 3 роки тому

    Im in South Africa and writting a test abot this on monday .. Thank so much Dr John ❤❤❤❤❤❤
    You are the besg of the best!!!😁😁😁

  • @gratisticheri
    @gratisticheri 3 роки тому

    Why oh why are there thumbs down for this video? That is a mystery to me. I see myself becoming a troll of those who give this a thumb down. This is simple and brilliant explanation.