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News
Vivid dreams may drain the brain’s energy during sleep
4+ day, 4+ hour ago (955+ words) During REM sleep, blood flow increases while energy inside neurons drops, revealing a surprising paradox linked to vivid dreams. Some mornings you wake from a vivid dream more tired than when you fell asleep. Sleep is supposed to leave you…...
Breathing and brain signals fall out of sync during deep sleep
5+ mon, 2+ week ago (718+ words) Scientists have discovered that breathing and brain activity inside key movement circuits fall out of sync during the deepest stage of sleep. That separation reveals a hidden rule of deep rest and reframes how the sleeping brain handles signals arriving…...