10 Centenarians Share Their Secrets to Long Life

by Alikay Wood

Centenarians—people older than 100—are a rare, but growing population. In 2010, the United States census estimated there were 53,364 centenarians living in the country, a number projected to more than 400,000 by 2050. They give credit for their health to everything from stretches and playing bridge to ballroom dancing. Here are some of their best tips: