A 93-year-old who started running marathons in his 50s goes to spin class every morning. He does 3 things to stay healthy. [Video]

At 93, John Starbrook competes in water polo games, hits the gym up to twice a day, and only stopped running marathons five years ago.

He likes to start his day with a spin class and might go back to the gym at around 4 or 5 p.m. to work on his upper body, the retired father of three from the UK told The Guardian. Aside from “a touch of” arthritis in one knee and an irregular heartbeat, Starbrook says he’s in perfect health.

“A lot of people seem to think that when they hit 50, they’re old. I hear that and I don’t know what they’re talking about,” he told the outlet.

As average life spans rise and an aging population becomes a global reality, interest in staying healthy for longer is growing. More than $450 million was spent on wellness products and services such as fitness classes and wearable technology in 2022, according to McKinsey estimates. And this …