(WFLA) – This video is proof – age is just a number!

This gentleman cranking out pull-ups- is 90 years old!

Vern Greenwood lifts weights every other day with his son at the anytime fitness in Haines City, Florida.

He says he can do up to 29 pull-ups.

It doesn’t even look like he is breaking a sweat.

He told WFLA staying in shape keeps him positive and helps him live longer.

“Sitting on the couch that’s not good. Every minute in the couch is a minute shorter on your life,” Greenwood said.

During the summer months, Greenwood heads up north and still works out.