How the Brain Moves From Waking Life to Sleep (and Back Again) | Quanta Magazine

Transition from Waking Life to Sleep

Neuroscientists are studying the boundary between sleep and awareness, discovering various liminal states that help explain sleep disorders caused by faulty sleep transitions.

Sleep is a crucial state for animals to survive, refreshing the brain and body by repairing tissues, clearing toxins, and solidifying memories.

You’ve started your journey into sleep, the cryptic state that you and most other animals need in some form to survive.

As one drifts off to sleep, the brain processes various stimuli, such as sounds and visuals, even if they are not real, like a cat sniffing at cheese.

Author's summary: Exploring sleep transitions and disorders.

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Quanta Magazine Quanta Magazine — 2025-10-17