Americans are living longer than ever

SAN FRANCISCO (KGO) -- Americans are living longer than ever. A new report on mortality by the CDC and National Center for Health Statistics says the life expectancy in the U.S. is now nearly 79 years.

That's an increase of about a month since the 2011 study.

Women are expected to live more than 81 years.

For men it's 76 years.

There's no real explanation for the life expectancy differences between men and women, but scientists suspect behavior may play a role, with men being bigger risk takers.