Sleep is good.
I need my sleep but sometimes I wonder, why do we sleep? Do I really need to sleep? If I didn't sleep I could spend more waking hours doing a million more things. Why we sleep though is a question that has been asked for centuries and still no one really knows the answer. I do not know why I sleep, but I know that if I do not get enough sleep, the next day becomes a waste of a day. I get headaches, feel groggy and my concentration level is low. This lack of sleep is what scientists have been studying for centuries in an attempt to better understand why we sleep. Scientists study these various effects of sleep defiency to better understand sleep. Without it, our cognitive skills would be harmed and brain development probably affected. If you think humans sleep to save energy, the BBC article "The Science of Sleep" mentions that for eight hours of sleep, we only save about 50kCal which is very minimal. One piece of my Peppe...