Why Do We Dream? (Your Brain Is Busier Than You Think)

Tonight, for about two hours, you'll see things that aren't there. You'll walk through places that don't exist, talk to people who aren't in the room, and believe every second of it. Most people think dreams are just noise, but the real answer is far stranger. In this video, you'll discover how Eugene Aserinsky watched his own son's eyes darting in his sleep and uncovered REM sleep in 1953. You'll learn why Freud thought dreams were hidden wishes, and why Allan Hobson and Robert McCarley argued they're your brain trying to explain random noise. Then you'll see how Robert Stickgold's Tetris experiment, Antti Revonsuo's "threat simulation" idea and Matthew Walker's "overnight therapy" suggest your dreams may be practising, rehearsing and healing while you sleep. And the twist: after more than 70 years of research, scientists still don't fully agree. If this changed how you think about your dreams, give it a like, tell us your strangest dream in the comments, and subscribe for more strange truths about your own mind. #dreams #whydowedream #dreaming #sleep #remsleep #sleepscience #brain #brainfacts #neuroscience #psychology #nightmares #dreammeaning #freud #mind #consciousness #sciencefacts #funfacts #didyouknow #educational #scienceexplained #doodleanimation #curiosity