It is overwhelmingly women who live to age 100. In 2010, 82.8 percent of centenarians were female. For every 100 females age 100 or older, there are only 20.7 males the same age. Females also make up 61.9 percent of those in their 80s and 72.2 percent of people in their 90s.
“We know that women are more social than men. Other studies have found that staying socially connected predicts greater life expectancy,” says Gary Small, a professor on aging and director of the UCLA Longevity Center in Los Angeles, who is not affiliated with the Census Bureau report. “If you are social, it may reduce stress levels because you can talk about your feelings and things that stress you out and it seems to help many people. If you need a ride to the doctor or you fall, they can take you to the hospital or help you find the best doctor.”