sleep reduces sleepiness—hardly a satisfying explanation for a basic requirement of life. Criticality maximizes the encoding and processing of information, making it an attractive candidate for a general principle of neurobiology sleep restores the computational power of the brain. It’s a radical departure from the long-held assumption that sleep must somehow replenish mysterious and unknown chemicals depleted during waking hours. Why do we sleep? Researchers have constructed a theory that could explain both the meaning of sleep and the complexity of the brain.
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Friday, June 27, 2025