Research shows that short, intense workouts are beneficial

I started running a year ago to deal with stress and to get in better shape. Instead of a set distance, I do 15 minutes of mixed fast and slow running twice a day. But a friend says unless you’re always trying to go farther and faster, it’s not really helpful. Is that actually true?

Less is More: Why Short Workouts are Better Than Long Ones

No Time to Exercise? 3 Reasons Short Workouts Are Better Than Longer Ones

A 19-Minute HIIT Workout for Beginners - The New York Times

Profiles Gym, Les Mills Group Fitness

How 10-Minute Micro Workouts Can Improve Your Fitness? - BetterMe

Less is More: Why Short Workouts are Better Than Long Ones

Why Shorter Workouts May Be Better Than an Hour at the Gym - FitOn

Why Shorter Workouts May Be Better Than an Hour at the Gym - FitOn

Short intense workouts vs long: Which one is better?