Laziness is contagious. Part of human nature is that if you do nothing, you’ll always drift in the wrong direction. You have to actively drive in the right direction. I call this phenomenon the gravity of depravity. If you find a friend chilling out on the sofa eating Cheetos and drinking a Coke, you might have the thought that you need to pull them up to their feet and go work out. But if they decide to pull you down to their level it’s a lot easier for them—they have gravity working with them—that’s the gravity of depravity. That’s why you soon find yourself chilling on the sofa with orange lips.