High-intensity interval training (HIIT) has been documented in the history books since the early 1920s. But it wasn’t until 2014 that this high-intensity workout — which features short ...

High-intensity interval training workouts, or HIIT, which involve bursts of high-intensity effort followed by short rest periods, are almost unmatched in their efficiency. These workouts can take ...

When you picture the typical high-intensity interval training (HIIT) workout, a handful of go-to exercises likely come to mind: burpees, squats, lunges, mountain climbers, jumping rope ...

During deep sleep, growth hormone production peaks, repairing muscle tissue damaged during exercise. At the same time, stress hormones like cortisol are balanced, and blood sugar levels are regulated.

She creates safe, inclusive workout programs for everyone—including beginners and expectant or postpartum moms (and even filmed this HIIT workout 18-weeks pregnant!). This routine is structured ...