Christie: Weight-loss surgery 'life-changing'

ANGELA DELLI SANTI
FILE - In a March 25, 2014 , file photo New Jersey Gov. Chris Christie talks during a town hall meeting in Belmar, N.J. Christie says undergoing gastric bypass surgery more than a year ago was a "life-changing decision." (AP Photo/Julio Cortez, file)

TRENTON, N.J. (AP) — New Jersey Gov. Chris Christie says undergoing stomach banding surgery more than a year ago was a "life-changing decision."

Appearing on his monthly TownSquare Media radio show Wednesday night, Christie says he works out four days a week and has achieved better health.

The 51-year-old governor hasn't said how many pounds he's shed, but he has become noticeably thinner since secretly undergoing the surgery last February.

He says he enjoys riding a stationary bike but does not like doing side-lift exercises with dumbbells.

The possible 2016 Republican presidential candidate has said he's struggled with being overweight his entire adult life.