What’s Happening In Your Brain During ‘Microsleep’

The nice article about dangerous of Microsleep from Huffington Post 

Here’s what you need to know about one of the most dangerous consequences of sleep deprivation.

We’ve all experienced it: You’re completely exhausted after pulling an all-nighter, and despite your best efforts to stay awake, your eyelids keep closing and closing until suddenly you nod off for just a second — only to awake with a jerk.

This phenomenon is what’s known as “microsleep,” a momentary and involuntary pocket of temporary unconsciousness lasting from a fraction of a second up to roughly 10 seconds, ending in a sudden head jolt.

Why does our brain enter these periods of microsleep? They’re typically caused by extreme fatigue. Sleep is a basic biological necessity, and when we force ourselves to go without it for too long, the brain will eventually shut down — even if just for a few seconds. During microsleep, your brain is essentially taking a forced nap, because its current level of sleep deprivation is preventing certain areas and networks from functioning.