Obviously, whatever sleep is for us, it is undoubtedly vital to our health and well- being. If it wasn’t, those individuals who needed less sleep would have risen to the top of the gene pool a long, long time ago, and those that thrived on a lot of sleep would have been, well, eaten probably. Man, I’m glad I was born in this day and age. Being eaten would suck.
To date, scientists haven’t been able to pinpoint exactly why we sleep, but there is definitely a consensus among researchers and the scientific community (and new mothers) that adequate sleep is good for you in a many ways.
We’re all familiar with the fact that we have a hard time focusing on information when we’re running on too little sleep. Absorbing information is only half the battle though. Actually, if you really want to get technical, it’s only a third. Learning and memory are divided into three functions.