Should You Sync Your Workout Plan to Your Period?

The Trend: Cycle syncing is all over FitTok. The practice involves changing up your workout routine based on where you are in your menstrual cycle: the follicular, ovulatory, luteal, or menstrual phase. The thinking goes that hormone fluctuations dictate what type of movement your body is “best” suited for at any given time. Now, there’s an entire startup gym dedicated to the concept. FOLM — named for each phase of the cycle — is built around classes designed to match those hormonal shifts.

What People Are Saying: Proponents claim syncing can boost performance, reduce fatigue, and make workouts feel more intuitive. Think harder training when estrogen is higher, gentler movement when progesterone rises or bleeding starts. Skeptics (and many researchers) point out that most of the evidence is anecdotal and individual cycles vary wildly. “From a medical standpoint, there is no good evidence,” says one doctor.

What You Should Know: There’s no concrete evidence that you need to train differently in each phase to see results. But there is solid support for listening to perceived energy and pain. If cycle syncing helps you tune in, great. If it boxes you in or makes you skip a workout you want to do, it’s probably not serving you.