One of the coolest things with humans is that, as different as we may be, there are certain rites of passage that happen for most of us. And even if aging can seem scary, scientific studies have found that life isn't a downhill slide after our youth passes. There are plenty of areas that we peak in well into middle and old age. For example, teens may have vitality on their side, but older people are generally more psychologically stable.
Intrigued? Then check out the following gallery to discover some of the most important years of your life.