The Norwegian 4x4 workout is a cardio workout, which includes 4 sets of 4-minute intervals where you push yourself to 85-95% ...

It takes time and dedication to build yourself up to a point where you’re feeling strong the entire way through your run.You ...

Almost every major smartwatch or sports watch will now estimate your VO2 max without you having to take a gruelling lab test. It’s often branded differently from ‘VO2 max’ on your device or ...

Biohacker Dave Asprey shares 10 habits that can help you live longer, feel better, and boost energy every single day.

but they’re also a highly effective way to improve cardiovascular fitness (think VO2 max), burn calories, and build endurance. With so many options on the market, finding the right one is ...