GET YOUNGER FROM THE INSIDE OUT

We'd call this workout the fountain of youth, but it's better than that: IT'S BASED ON THE SCIENCE OF KEEPING YOUR BODY YOUNG.

-  LARYSA DIDIO

WHY THIS ROUTINE IS SO POWERFUL 

What you have here is a combo of moves that, together, counteract the negative effects of aging.

In this workout, you'll do eight strength moves because strong muscles mean, among other benefits, stronger bones, a healthier brain, and better balance-all crucial to being young on the inside. Your final move is a HIIT move, the one that brings a little extra magic (actually, science!) to the whole thing. 

HIIT stands for high-intensity interval training, and we know that can sound, well, intense. But HIIT is actually a totally doable way to give your workout the kind of boost that really matters. It just means you add extra bursts of energy to a small section of your workout. Yes, you'll really sweat during those 30 or so seconds, but the perks far outweigh the temporary strain.

Studies have shown that HIIT workouts bring a host of benefits: The method improves cardiac function, muscle function, and memory faster than regular exercise. A specific aging-related benefit, though, is that HIIT routines have been shown to lengthen the ends of your telomeres, which are parts of chromosomes; when a telomere gets too short, the cell it's associated with dies. Lengthening them may keep your cells-and therefore you-healthy a lot longer.

You can put it all together in this workout no matter what your fitness level. It's easy to start and just as easy to make more challenging as you get stronger-and, dare we say, younger?

HOW TO GET THE MOST OUT OF THIS WORKOUT 

You can do these moves one time through and be proud of yourself. But to truly reap the strength, cardio, and longevity benefits, follow these guidelines: