“Activation” exercises are often recommended at the beginnings of workouts. You might get the idea—whether from random TikToks or from a trainer you pay for their expertise—that activations are ...

You've probably heard a personal trainer or group workout instructor say, "activate your glutes" at some point in a sweat session. But what does that phrase actually mean–and how do you even activate ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. “Activation” exercises ...