Each of you probably has noticed how hard it is to work on a drowsy head. You force your body with all your might, yet it resists and demands some sleep. At some moments it may even seem that although the body is doing the job, the brain stays loyal to its own wishes and falls asleep every now and then. This type of behaviour has scientific support, affirming that the brain of a sleep deprived person, even if the person missed one night of sleep, periodically shuts down on its own. Continue reading »