[PREMIERING at 2:30PM ET] Why Are We Fatter Now Than in the 70s? | Dr. Jason Fung

We’ve been told that counting calories is the key to weight loss. However, hormones may play a more pivotal role. “The body doesn’t actually respond to calories. The body only responds to hormones. ... So hormones are what tells your body what to do,” says nephrologist (kidney health specialist) Dr. Jason Fung. Which hormones ...