About 100 Days

John and his best friend Chris spend 100 days learning about health and fitness, while also trying to become, you know, healthier.

Launched in January 2017, 100 Days follows two best friends, John Green and Chris Waters, on a quest to improve their fitness and health over a one hundred day period. Two averagely unfit guys in their (very) late 30s, John and Chris learn from the experts how to make sustainable changes in their lives and have a healthy and productive midlife crisis.