For some inexplicable reason, adult humans, dating all the way back to 400 B.C. have not only loved coffee, but have relied on it just to function. It's a proven fact that cavemen couldn't properly tend to their woolly mammoths without having a skinny iced soy vanilla caramel mocha latte with foam and low-fat gluten-free whipped cream to give them their morning caffeine boost. Of course this is a joke, guys. That drink has no caffeine in it.