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. While plenty of ...

If ever you’ve done a Pilates or barre class, you may well be familiar with exercise sliders (also known as ‘gliders’ or core sliders). If not, you’ve probably been wondering what on earth those small ...

Calisthenics might bring back memories of 80s leg-warmers, but recently it has exploded on social media as a fitness phenomenon. The hashtag #calisthenics has racked up over 18.5 billion views on ...