You don't need magic, but you do need something that also explains why lab animals are getting fatter even when they've been on controlled diets and their activ

You don't need magic, but you do need something that also explains why lab animals are getting fatter even when they've been on controlled diets and their activity levels haven't changed. https://www.theatlantic.com/national/archive/2013/10/its-not-just-us-even-american-animals-are-getting-fatter/310063/ https://www.theatlantic.com/national/archive/2013/10/its-not...