I keep going back to how tough it would be to explain REM sleep and twitching to an alien (assuming they don't do it too, which maybe isn't a given)
Jimmy Dooley
Twitching during REM sleep is important for honing the sensorimotor system during development in humans and other animals. But why do adults twitch during sleep?
Check out this review by James Dooley & colleagues
www.cell.com/current-biol...
Blumberg et al. present video evidence of twitching during adult sleep in a diverse
sample of animals. Adult twitching appears to selectively involve appendages used
for active sensing, mirroring thei...