Sleep deprivation is a problem that affects about 87% of teenagers worldwide. It is an issue that takes a toll on teenagers in a multitude of ways and can destroy teens physiological, psychological and social well being. One of the main contributors to this sleep epidemic is school start times; considering in 40 different U.S. states, 75% of public schools start before 8:30 am, the average being 8:03 am. It may be tempting to suggest that teenagers go to sleep earlier, but on top of homework and after school activities keeping them awake at night, teens are also effected by an internal sleep clock. Due to the Circadian clock, “Teens are biologically predisposed to stay up later at night and sleep later in the morning. This shift in teens’ sleep-wake cycle, which is a normal part of development, can make a 9 or 10 p.m. bedtime difficult.” (Dr. Michael Breus)". Thus, with an early start time, and a late bed time, the majority of U.S. teens are short on the recommended 8-10 hours of sleep.