The Abs Exercise That Helps Hailee Steinfeld Trick Herself Into Training Her Obliques

There's been a lot of conjecture about Hailee Steinfeld's abs. The star sets the record straight on her routine.

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Photo: Vivien Killilea/Getty Images for Core Hydration

“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