It’s no secret that working out keeps you younger—both in terms of the energy you have and your physical ability to keep doing the things you love. “Fitness is a youth serum,” says physical therapist and fitness expert Maureen Hagan. “Fitness affects how youthful you look, the way you move, and your ability to do whatever you want, whenever.”

Hagan has been training clients for more than 20 years with a focus on active aging, and is also a regularly published research reviewer on the same topic. This past weekend at the IDEA World Fitness Convention, Hagan presented the healthy aging secrets she’s learned from both practice and clinical research. Don’t worry, we’re not about to overhaul your favorite workout. No matter how old you are or what you like to do for exercise, you can use Hagan’s secrets to move better, protect yourself from injury, and feel younger.

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