Fan Favorite: Is Exercising to Lose Weight a Myth?

Usain Bolt can scarf down 47,000 calories worth of chicken nuggets and look great, while some dieters work out 4 hours a day and never shed a pound. So is exercising to lose weight a big scam? And what does Calvin Coolidge's exercise horse have to do with it? Featuring Dr. Herman Pontzer. Learn more about advertising on the HowStuffWorks podcasts at www.howstuffworks.com/advertisers.htm And to learn about your ad choices when listening to podcasts, visit https://www.howstuffworks.com/privacy.htm#ad-choices