Sleep Shrinks the Brain—and That’s a Good Thing

Ah, to sleep, perchance … to shrink your neural connections? That’s the conclusion of new research that examined subtle changes in the brain during sleep. The researchers found that sleep provides a time when thebrain’s synapses — the connections among neurons—shrink back by nearly 20 percent. During this time, the synapses rest and prepare for the next day, when they will grow stronger while receiving new input—that is, learning new things, the researchers said. Without this reset, known as “synaptic homeostasis,” synapses could become overloaded and burned out, like an electrical outlet with too many appliances plugged in to it, the scientists said. “Sleep is the perfect time to allow the synaptic renormalization to occur … because when we are awake, we are ‘slaves’ of the here and now, always attending…


Link to Full Article: Sleep Shrinks the Brain—and That’s a Good Thing

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