Rare brain cells with wide connections appear to trigger sleep
Scientists identified rare, highly connected neurons in the mouse brain that seem capable of initiating sleep.
Researchers locate specific sleep cells
A team studied mice to find which neurons control the transition into rest. They discovered a small group of cells with extensive connections across different brain regions. These specific neurons appear unique compared to other types found in the central nervous system.
Stimulation causes animals to sleep
Activating these particular cells caused the mice to fall asleep immediately. The researchers observed that turning off this group did not prevent normal rest cycles. This suggests the cells act as a primary switch rather than just modulating existing signals.
Findings apply to other mammals
The study notes that similar cell structures exist in humans and other mammals. Experts believe these results help explain how the brain decides when to rest. Further experiments will determine if drugs can target these cells without side effects.
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