David Frank turns 91 this fall. He's the oldest Home Depot employee in Canada, living and working in Windsor, Ont.

On International Day for Older Persons, CBC Windsor asked him for the secret to living a long life.

He credits his longevity to good genes and eating right.

"Every day, I have a big juicy grape fruit, a whole grapefruit, complete every day - and cereal," he said. "As a general rule, I do not drink any alcohol. I do not smoke. I never have and never will."

Frank also said it's important to stay active.

"If you have an interest, if you have a hobby, develop it, grow with it, explore it," Frank said. "And participate. Participation is very important. It gets you out and gets you moving. I don't care even if you bike ride or if you go for walks or go camping, keep busy. That's it.

"From morning to night, there are things to do."

Prior to working at Home Depot, Frank owned a grocery store in Belle River, east of Windsor.

Long-time NDP MP Joe Comartin was one of his employees years ago.

"His first job was in my store, packing groceries, and he turned out nice. So I'll have to send him a congratulations card, a get well card, whatever it is for retirement," Frank said.

Meanwhile, Frank will continue to go to work.

"I get up in the morning. If my name is not in the newspaper, I'll go to work," he said. "I look after the hardware department, particularly nuts, bolts, screws, you name it.

"I fortunately am able to do anything and everything that all the others do here at work, whether it be climbing ladders or you name it."

Frank says he loves meeting people and solving their problems.