Happy Birthday, Ruth Bader Ginsburg! The inimitable Supreme Court justice, also known as RBG, turns 86 on Friday.

The justice, who has become something of a pop-culture and feminist icon in recent years, owes part of her longevity in life and career to her twice-weekly workouts with personal trainer Bryant Johnson. She’s been on the court for 26 years, and there’s good news for those who aspire to stay in their jobs (or at least enjoy life) for as long as she has: Ginsburg’s long-time trainer says it’s easier for older Americans to get in shape than they may think.

About 80% of seniors have at least one chronic disease and 25% struggle with some type of mental health disorder like dementia or depression, according to the National Council on Aging. But don’t write off health issues as just another part of getting older, says Johnson, 54, who is based in Washington, D.C. Many of them don’t have to be inevitable.

In fact, physical activity, whether you start tomorrow or you’ve been doing it for 30 years, is key to staying healthy and preventing (or at least mitigating) these kinds of common health issues that plague many of the older population.

“It’s never too late,” he says. “The only obstacle that you have to really deal with is the obstacle of self. Don’t say you can’t begin. You’re not too old until the party stops moving.”

See the full article at: http://money.com/money/5638437/ruth-bader-ginsburgs-personal-trainer-says-saving-money-is-a-lot-like-exercise-heres-how/