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. Zone 2 training is ...
When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The Astro A20 X is just a modified version of the Logitech G522 Lightspeed with a handy new ...