Veteran celebrating 101st birthday says this soda is his secret to longevity

Veteran Eugene Petersen, a retired U.S. Army sergeant major, celebrated his 101st birthday at Travis Air Force Base in California, where the centenarian volunteers several days a week, the base said Tuesday. 

His daughter was asked what she thought the secret to Peterson's longevity was. 

"He doesn't let any moss grow under him," she said, according to the military base.