Sleep is like your significant other. You’re fond of it, but you don’t really understand it. From an evolutionary perspective, sleep is a strange phenomenon that transforms us into unconscious, ready-to-eat meals for predators. To compensate for the risks it exposes us to, it needs to have tremendous evolutionary benefits. Turns out – it does.
Sleep explained in exactly 500 words (www.complexitycondensed.com)
What do you think?