While you sleep, your brain gets to work. It consolidates memories, clears metabolic waste, and restores neurotransmitter levels. Poor sleep disrupts all of these processes and increases the risk of cognitive decline.Sleep deprivation has been shown to
shrink the hippocampus, the part of the brain responsible for memory. It also impairs attention, emotional regulation, and decision-making.Deep sleep activates the
glymphatic system, the brain’s internal cleaning mechanism. This system clears out harmful proteins like beta-amyloid, which build up during wakefulness and are linked to Alzheimer’s.
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