I’m here to shed some light on why so many fitness classes happen in the dark

Fitness trainers from various studios—from boxing to spinning and yoga—explain the surprising benefits of working out in the dark.

alt
Photo: Getty/WestEnd 61

“I’m an Exercise Physiologist—Here’s Why You Shouldn’t Worry About Cortisol Spikes When You Do HIIT Workouts.” 

There’s a difference between chronic stress and making your body work during workouts.

woman sweating in the gym
Stocksy: Julia and Rob campbell

The 5 Best Pilates Exercises to Improve Flexibility

Stretch your limits with these gentle movements.

Unrecognizable woman stretches arms to legs while stretching on yoga mat on wooden floor of an outdoor terrace.
Photo Credit: Stocksy / Alexander Grabchilev