(00:00:00)Your YouTube transcript will appear here(00:00:00)Have you heard of the Russian sleep (00:00:01)experiment? Back in the 1940s, a group (00:00:04)of Russian scientists ran a dark (00:00:06)experiment. They locked five prisoners (00:00:08)in a sealed room and told them, "Stay (00:00:10)awake for 30 days and you'll be free." (00:00:13)To help, they pumped a strange gas into (00:00:15)the room. Something never tested before (00:00:17)at first. The men talked normally, but (00:00:19)after a few days, things started to feel (00:00:21)off. They became quiet, paranoid, (00:00:23)whispering to themselves and pacing in (00:00:25)circles. By day nine, one man screamed (00:00:28)for hours until he lost his voice. Then (00:00:30)silence. The others stopped talking. (00:00:32)They tore up books, drew strange (00:00:34)markings on the walls. Some started (00:00:36)harming themselves in ways that didn't (00:00:37)even make sense. When the 30 days (00:00:39)finally passed, the scientist opened the (00:00:41)chamber. Inside, only one man was left. (00:00:44)He was barely alive, thin, pale, eyes (00:00:46)wide open. The floor was stained with (00:00:48)something dark, and the air felt heavy. (00:00:50)But he didn't try to escape. He just (00:00:52)stood there, swaying. When the scientist (00:00:54)told him he was free, he looked up and (00:00:56)whispered, "I don't want to be free. (00:00:59)[Music]