Take The Dr. Oz Health Quiz | The Best of The Oprah Show | Full Episode | OWN

[@mamapenguin101]

I love learning from these fantastic episodes! Thank you, Oprah and Dr. Oz!

[@suegaskell9029]

Thank you xx

[@terryfrancis10]

One of these answers is incorrect now.
Scientists now say Heart Rate Variability is the most important indicator of Health/Longevity.