Why do we dream?

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Transcript

00:00Huh, how come your brain spends almost two hours every night dreaming?

00:07But why?

00:08Dreams are stranger and more important than you think.

00:14During REM, your brain becomes just as active as you were awake.

00:20It runs emotional simulations, letting you rehearse fears, escape danger, and explore ideas, all in a safe environment.

00:32Dreams also act like a mental janitor, cleaning up useless memories and strengthening the ones that matter.

00:42It's why a good night's sleep boosts learning and creativity.

00:46They feel bizarre because the provincial cortex, the brain's logic center, is mostly offline.

00:55That's why time bends, people morph, and anything feels possible.

01:01We still don't understand why we dream.

01:05Some scientists think it is for emotional healing.

01:09Others say it is your brain's random neurons firing.

01:13But studies show skipping REM sleep too long, and you'll become irritable, forgetful, and even hallucinate.

01:23Dreaming might even boost creativity.

01:27Some famous inventions and songs came from dreams, like Suing Machine Needle and a Beatles song called Yesterday.

01:36So next time, when you awake from a crazy dream, do not dismiss it.

01:43Your brain just gave you free therapy session, a memory upgrade, and maybe your next big idea.