Your brain’s ability to learn may get recharged during the light, dreamless slumber that accounts for up to half of your night’s sleep, according to a new study.
Researchers at the University of California, Berkeley conducted tests on 44 healthy young adults and found strong evidence that bursts of brain waves called sleep spindles may network between important regions of the brain to clear a path to learning.
These spindles — which are fast pulses of electricity that are generated during non-rapid eye movement (REM) sleep and can occur up to 1,000 times per night — help to transfer fact-based memories from the brain’s hippocampus to the prefrontal cortex’s “hard drive.”
This enables the hippocampus, which has limited storage space, to take in fresh data, the researchers explained.
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