Why do we need to sleep every night?
Night-Shift Brain
Why do we need to sleep every night?
Every night, something strange happens. You — busy, talking, thinking, scrolling — slowly power down like a phone in a dark room. You don't choose it; it chooses you. So what's the deal? Why does a clever, capable creature have to spend a third of its life unconscious in a horizontal pile?
Here's the twist: sleep isn't your brain switching off. It's your brain switching jobs. While you're awake, your brain is the daytime crew — taking calls, fielding messages, reacting to everything at once. At night, a quieter night-shift crew clocks in to do the work that's impossible while the lights are on.
