A 90-year-old comedian still does gigs and plays golf. She shared her secrets for staying fit and funny.

• D'yan Forest is a working comedian at 90, doing gigs in two languages.
• She shared some of her tips for staying fit and funny into her 90s.
• These include having a positive outlook and spending time with younger friends.

It's never too late for a career change — even if you're almost 70.

After a 40-year-long career as a cabaret singer, D'yan Forest, who lives in New York City, became a comedian in 2001. Now 90, she holds the Guinness World Record for Oldest Female Comedian and still performs solo shows in English and French.

"I never thought I'd be a comedian at 90," she told Business Insider. "I make fun of myself and older ladies, and I sing parodies. I'm a little risqué, and the people love it because they can't believe that an older woman still has verve and fun and can say such risqué things."

Forest shared her longevity secrets for maintaining that verve into her 90s.

Keep your mind active

"Being funny keeps my mind working. I change my material every six months, so I'm always learning new things as the culture changes in France or America. What is amazing is that I'm getting better and better every time I perform," she said.

Doing comedy has also helped her look at life with a "fun slant," she said. "It's a mental outlook that keeps me going.

This chimes with what experts have previously told BI: Heidi Tissenbaum, a cancer biology professor who researches healthy lifespans, said that keeping the mind busy is one of the basics of longevity. The authors of a 2023 study on common traits of healthy centenarians recommended staying intellectually active and focusing on the good in life.

Exercise

Forest goes swimming every other day and plays golf three times a week.

"I go out for long weekends, and boy, after the third day, I'm exhausted," she said. "But that keeps me physically active. Not many women my age can walk the golf course like that."

A 2019 study by researchers at the National Cancer Institute found that adults who exercised consistently into later life had up to a 36% lower risk of dying from any cause over the 20-year follow-up period. The study also found that even starting to exercise in later life is beneficial for longevity.

Eat fresh whole foods

"I just eat pure food, raw vegetables and fruits. I don't like it when food is all artificial. My mother always said during the war, "Eat the fresh fish. Eat the fresh fruit." She wouldn't even cook 'em, just ate them," Forest said.

A 2023 study published in the journal Nutrients on 2,454 participants from China found that eating more fruit and vegetables lowered the risks of cognitive impairment in older age. A 2020 study published in the American Journal of Clinical Nutrition found that US women over 60 who ate more fruit and vegetables were less likely to experience fatigue, poor strength, and illnesses.

Have (lots of) younger friends

Forest goes out for dinner with a different friend every day of the week.

Having a strong community is important for longevity. It may be more important than a healthy diet and regular exercise, said Professor Rose Anne Kenny, chair of medical gerontology at Trinity College Dublin.

"The problem is, when you're 90, that a lot of your friends and family die," Forest said. "And that's why the comedy is good because through that I've met a lot of younger friends who have the same interests that I do."

She's not alone — 102-year-old Janet Gibbs also credits her longevity to having younger friends as well.