More research is being conducted to determine the exact effect sleep has on health. As they are discovered,they will be passed on. Sleep is important for the regulation of hormones,energy levels,circulation,and the immune system. Sleeping well can help cure a number of simple ailments that you may deal with during the day. Slowing down your body systems and reducing stress and the chance for injury are other side benefits of getting enough sleep. Sleep is so important for peak performance,one study showed that it can make you more productive. The study revealed that even“sleeping the extra twenty minutes in the morning and getting an hour less sleep will significantly increase earnings". In another study,researchers found out that surgeons who slept longer made fewer mistakes. The study also discovered that:“longer sleep was positively associated with patient satisfaction and negatively associated with complications,length of hospital stay,and return visits”. Effects a