Welcome to Public Health On Call, a podcast from the Johns Hopkins Bloomberg School of Public Health,

where we bring evidence, experience, and perspective to make sense of today's leading health challenges.

If you have questions or ideas for us, please send an email to public health question at jhhhu.edu.

That's public health question at jhhu.edu for future podcast episodes.

It's Lindsay Smith Rogers.

Today, the intersection of movement and aging.

Dr. Jen Schreck, director of the Johns Hopkins Center on Aging and Health, talks to Stephanie

Desmond about the work she and her colleagues are doing to explore the connection between

physical activity, rest, and dementia.

And the mantra we should all have as we get older is keep moving.

Let's listen.

Jen Shrek, welcome to public health on call.

Thank you for having me.

I am so happy you're here today because I am fascinated by the work that you're doing.

And so you are doing work sort of at the intersection of movement and health, and really the effects it has on aging.

So I'm wondering if you could just give a little overview of what we need to know about movement

and health as we age.

So we slow down as we get older.

I think everybody knows that.

But one of the really fascinating facts about that is it crosses species. So it's not just people,

anyone who's ever had a dog that as it gets older, it's slower and slower. It takes longer and

longer to walk it. But it's also true of fish. It's true of worms. It's true of mice. This is a cross

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