In YOU: Having a Baby, Dr. Mehmet Oz and Dr. Michael Roizen, America's Doctors, help moms-to-be navigate the 280-day journey of pregnancy. Friends, websites, books, and blogs all provide lots of information, but it can get confusing and become hard to know whom to believe. This book helps pregnant women by teaching them what is going on in their bodies and why. The doctors provide you with all you need to know about nutrition, exercise, hormones, and fetal development. They put to death some long help myths and reassure you that your maternal instinct is usually pretty good. In addition to all this, they explore a cutting-edge new field called epigenetics, which gives you the power to change the genetic destiny of your child.