Do Presidents Age Faster Than the Rest of Us?

It seems that presidents age faster than normal people. I mean, take a look at Bill Clinton above. He left the White House looking over 8 years older than when he started. One physician suggested that they do age twice as fast, but a new study that was conducted concluded found evidence that this idea may not be as true as we have thought it to be. Many presidents actually live longer because they are wealthier and can afford great health care. So what is causing presidents to wrinkle? Researchers say that it's because they're getting older like the rest of us, but another factor that plays a role is probably stress.