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. January 15, 2015 Add ...
We all know calories count, but do you need to count 'em? MH's Fitness Director and nutritionist Andrew Tracey weighs in In recent years, the fact that a negative energy balance – eating fewer ...