Fredrick Hahn

Fredrick Hahn is the author of Strong Kids Healthy Kids (AMACOM), which further explains how kids can strength train, and the co-author of The Slow Burn Fitness Revolution (Random House). Hahn owns Serious Strength Personal Training Studios in Manhattan. He blogs for the Huffington Post and is a contributing member to the Nutrition and Metabolism Society. Learn more at

Articles by Fredrick Hahn