The war wages on! Dr. Oz and a panel of experts weigh in on an age-old argument: men vs. women.

Does biology or society fuel our biggest differences? Is a man or a woman more likely to have a one-night stand? Who gossips more? Watch to find out. 

What factors affect the way we communicate with one another? Are men or women better communicators? Click here to watch Part 1.

Are there certain degrees of cheating? Click here to watch Part 3.

Are we meant to be monogamous? Click here to watch Part 4.

Dr. Oz goes where he's never gone before. He's letting you eat fast-food and it's not what you expect. Learn which fast food meals you can eat under 500 calories while still enjoying the food you love.