Based on personal experience, sleep deprivation causes: Severely impaired cognitive ability; Significantly reduced ability to concentrate; And from my wife’s experience of ME: Extreme irritability and grumpiness; As is the case in many aspects of a person’s life, (having a brain which exhibits) high IQ offers few functional benefits to the unrested. read more
Researchers at the University of California, San Francisco, discovered that some people have a gene that enables them to do well on six hours of sleep a night. This gene, however, is very rare, appearing in less than 3% of the population. read more
Sleep deprivation hits the hippocampus harder than the amygdala. The result is that sleep-deprived people fail to recall pleasant memories, yet recall gloomy memories just fine. In one experiment by Walker, sleep-deprived college students tried to memorize a list of words. read more