The brain is active during sleep because the brain produces slow-wave activity (SWA), which plays a role in consolidation of memory. Scientists don’t really know what SWA does, but they speculate that it takes the brakes off previously suppresed information and “bubbles” it up into awareness.
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- Instead a series of highly orchestrated events puts the brain to sleep in stages. Technically sleep starts in the brain areas that produce SWS.
- During this stage of sleep, what’s happening in the brain is we are repeating and rehearsing some of the events from our day before.
- The brain is active during sleep because the brain produces slow-wave activity (SWA), which plays a role in consolidation of memory.
- during sleep, wash the brain A 2019 study in the journal that is itself a juicy mixture of cerebrospinal fluid and blood chemistry (opens in new tab) found.
- You spend about 25% of your sleep time in the REM phase and 45% in N2. Each sleep phase is associated with different kinds of activity in your brain.
- As you get older, there is less REM sleep, Memory consolidation likely happens in both REM and non-REM sleep, scientists say. The brain and sleep cycles.
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