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.