Dr. Oz's Beauty Book

There are easy ways to see how your body developed even before you were born, Dr. Oz says. One quick test is to take a look at your index and ring finger. If your index finger is shorter than your fourth finger, it means you had a lot of testosterone in utero. If your index finger is about the same height as your fourth finger, you probably had more estrogen in the womb. "I only point that out because these are the kinds of simple things that we look to to see how you developed," Dr. Oz says. "It's a pretty cool little way of examining our bodies."