Not enough sleep equals less control over emotions

LiveScience[*1] via Kansas City Star[*2] :

“When we’re sleep deprived, it’s really as if the brain is reverting to more primitive behavior, regressing in terms of the control humans normally have over their emotions,” researcher Matthew Walker, a neuroscientist at the University of California, Berkeley, told LiveScience.

“Your emotions . . .
Make you a monster”