Eight months after surviving a heart attack, Bob Harper is back! He’s on a mission to save your life. Take our heart risk I.Q. quiz and see how your teeth and earlobes may predict a heart attack. Then, we’ve all felt gut instincts, but how do you know if you should trust them? Bestselling author DeVon Franklin breaks it down.

Whether it's falling or flying, Dr. Oz has the answers to why you have the dreams that you do and what they might mean.

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