Every living organism has a circadian rhythm. This is an internal body clock that governs sleep patterns, hormone release, physical activity and cognitive patterns so it is very important for our well beings to be living on correct circadian rhythm. For example, in the morning our bodies prepare ourselves for the day by stopping the release of melatonin (the hormone that supports sleep) so that we know it is time to wake up, at the end of the day hour bodies start secreting melatonin again so we know we are ready to sleep. Some people are night people, some are morning so we all have varying body clocks. This is an ongoing project to help people understand their own circadian rhythms so they can live a healthy live.