for the most part we all consider sleep as a good thing to do , but we don’t really know how this activity benefits us for one sleeping helps you repair your body, while we are asleep our body produces extra molecules that help mend the body so that the damage we suffer during the day from things such as stress , pollutants, sun exposure and so on, is repaired while we are off to dreamland. In addition, sleep helps to improve our memory; namely, when people do not have enough sleep, they cannot concentrate well the next day and have problems forming memories, researchers believe that during sleep, neurons can shut down and repair any damage done during the day.