One in a thousand cortical neurons can switch a mouse’s brain to sleep.

The find challenges sleep-disorder research built on a decades-old assumption about where sleep starts.

Einstein medical school researchers found these Sst-Chodl cells fire when triggered, overturning the belief that deeper brain regions alone start sleep.

The team still doesn’t know what naturally switches these cells on.

How each outlet framed it
Ars Technica
cortex independently initiates sleep rhythms, overturning prior model of deep-brain control

Sources: Ars Technica