Wake-activated neuronal populations that regulate sleep drive

TL;DR - A mouse study identifies wake-activated neuronal populations that are crucial for regulating sleep drive. Manipulating these cells can persistently reduce daily sleep, offering insight into the neural mechanisms that control sleep need.

• Researchers combined whole-brain activity mapping, targeted cell manipulation, and electrophysiology.
• The identified neuronal populations become active during wakefulness and contribute to sleep drive.
• Targeting these cells produced sustained reductions in mice’s daily sleep amount.
• The findings connect specific neural populations to the accumulation and regulation of sleep need.