"[L]ike every good cellar or attic, the brain needs a regular clear-out." <- synaptic homeostasis #readingToday
[L]ike every good cellar or attic, the brain needs a regular clear-out. The evidence from both flies and humans strongly suggests that this type of synaptic downscaling (or synaptic homeostasis) is part of the function of slow wave sleep. The idea that such cleaning sharpens the signal-to-noise ratio of important memories so they pop out from the background of unwanted garbage provides an initial hypothesis about how sleep may act to facilitate subsequent remembering.
(Moon+ Reader Pro v2.3.3, The Secret World of Sleep: The Surprising Science of the Mind at Rest (MacSci))