High intensity interval training (HIIT) may be the optimal exercise for reducing body fat while maintaining muscle mass in ...

High-intensity interval training, or HIIT, is a great way to get in a fast, effective workout. This quick routine is helpful ...

Lack of time is often the main reason people don’t exercise regularly. But a type of interval workout recently popularised by ...

Interval walking alternates slow and fast paces to boost intensity. People of all fitness levels can benefit from interval walking. Gradually increase the frequency and intensity of your interval ...

Plus, exactly how to get results from whatever activity you love to do.

A couple of years ago, I wrote an article about the fine-grained nuances of interval training. According to Paul Laursen and Martin Buchheit’s telephone book of a text, Science and Application of High ...

A longitudinal study has found that high-intensity interval exercise improves brain function in older adults for up to 5 years. A longitudinal study by University of Queensland researchers has found ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. I first tried the ...