Dick Van Dyke, who will turn 100 in December, has dished on the secret behind his healthy life.

While appearing on Where Everybody Knows Your Name podcast of Ted Danson, he candidly talked about his fitness routine.

“I’m almost 100. This is insane,” the Mary Poppins actor began by saying “Somebody said, ‘To what do you attribute your age and physical condition?’

Revealing a secret behind his healthy long-age, Dyke continued, “I’ve always exercised three days a week. We go to the gym still, and I think that’s why I’m not stove up like my equals.”

Recalling working out in a same gym in Malibu, the host said, “I would go to the same gym you did, and if I got there early enough, I would see you literally work out on some weight machine.”

“And then, almost like you were doing circuit training, you would not walk to the next machine, you’d dance. You literally danced to the next machine.”

Moreover, Danson also revealed that the Hollywood star not only goes to the gym, but also does swimming and then takes nap afterwards.

Before concluding, the 99-year-old actor admitted, “Exactly, Good routine.”