Where Are Most Human Neurons Located
Scientists identified two groups of neurons responsible for regulating sleep and wakefulness in the brain. When researchers reduced the activity of these two groups in mice, their sleep periods decreased by about 70%, allowing them to stay awake for additional hours without exhibiting behavioral disturbances commonly associated with severe sleep deprivation. The findings suggest that these two groups of cells play a key role in monitoring wakefulness duration and signaling the brain to initiate sleep.
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