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 resulting from 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.

During this transition, the brain experiences a range of sensations, from visual distortions to imagined scenarios, such as a cat sniffing cheese, even if you don’t own a cat.

Author's summary: Neuroscientists study sleep transitions to understand sleep disorders.

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Quanta Magazine Quanta Magazine — 2025-10-17