"I use them for treadmill running but also HIIT workouts." ...

There are several reasons why this happens. Firstly, during HIIT training, your body’s oxygen demand exceeds the supply, so your body needs to replenish this post-exercise, and this in turn burns ...

A groundbreaking study found that people who did HIIT workouts for several months saw their heart’s “biological age” drop by ...

The Watch7 even includes improved heart-rate tracking for more precise readings that allow you to optimize your HIIT workouts and monitor your recovery. HIIT your goals and train your sleep with ...

If you're into recreational training, HIIT workouts, or just need a solid pair of ... Charles Thorp is the Fitness and Commerce Editor at Men’s Health, where he shares the best product recommendations ...