Your brain does something surprising when you don’t sleep

When you’re short on sleep and your focus suddenly drifts, your brain may be briefly slipping into cleanup mode. Scientists discovered that these attention lapses coincide with waves of fluid washing through the brain, a process that usually happens during sleep. It’s the brain’s way of compensating for missed rest. Unfortunately, that internal cleaning comes at the cost of momentary mental shutdowns.

  Health   Jan 20, 2026   0   1  Add to Reading List
Your brain does something surprising when you don’t sleep
When you’re short on sleep and your focus suddenly drifts, your brain may be briefly slipping into cleanup mode. Scientists discovered that these attention lapses coincide with waves of fluid washing through the brain, a process that usually happens during sleep. It’s the brain’s way of compensating for missed rest. Unfortunately, that internal cleaning comes at the cost of momentary mental shutdowns.
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