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"Even with compelling research, changing school start times can be challenging for school districts. Administrators have to delay busing schedules. Coaches worry about scheduling practices and many parents rely on the current start times for reasons such as childcare or carpools.
Students are concerned that being in school later in the day means that it will cut into after-school jobs and other extracurricular activities."

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"A University of Minnesota study demonstrates the impact of pushing back school start times. After the Minneapolis Public School District changed the starting times of seven high schools from 7:15 a.m. to 8:40 a.m., the study investigated the impact of later start times on student performance, and the results are encouraging. It found that students benefited by obtaining five or more extra hours of sleep per week.It also found improvement in attendance and enrollment rates, increased daytime alertness, and decreased student-reported depression."

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"We must encourage schools to push back their start times to at least 8:30 a.m. — a schedule more in tune with adolescents' biological sleep and wake patterns and more closely resembling the adult work day."

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"On April 2 of 1999, Rep. Zoe Lofgren (D-CA), introduced a congressional resolution to encourage schools and school districts to reconsider early morning start times to be more in sync with teens' biological makeup. House Congressional Resolution 135 or the "ZZZ's to A’s" Act would encourage individual schools and school districts all over the country to move school start times to no earlier than 8:30 a.m."

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"Evidence suggests that teenagers are indeed seriously sleep deprived. A recent poll conducted by the National Sleep Foundation found that 60% of children under the age of 18 complained of being tired during the day, according to their parents, and 15% said they fell asleep at school during the year."

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Lack of sleep can cause depression, depression can cause lack of sleep which causes more depression. This is a huge problem because it's just a cycle and there's no getting out of it. And schools know this.

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"While many adults may think that adolescents have things easy or don't have much to worry about – the opposite seems true according to the NSF poll. Most adolescents were likely to say they worried about things too much (58%) and/or felt stressed out/anxious (56%). Many of the adolescents surveyed also reported feeling hopeless about the future, or feeling unhappy, sad or depressed much or somewhat within the past two weeks of surveying."

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In 2006 NSF took a poll over sleep in America. The polls showed that many of the young adults that took the evaluation were depressed a lot if not all the time. These teens all showed to have to little sleep. "In fact, 73% of those adolescents who report feeling unhappy, sad, or depressed also report not getting enough sleep at night and being excessively sleepy during the day."

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"Schools that have set later bell times find that students do not go to bed later, but get one hour more of sleep per school night, which means five hours more per week.
Enrollment and attendance improves and students are more likely to be on time when school starts. Parents and teachers report that teens are more alert in the morning and in better moods; they are less likely to feel depressed or need to visit the nurse or school counselor."

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Teens need 8-10 hours of sleep. "Teens' natural sleep cycle puts them in conflict with school start times. Most high school students need an alarm clock or a parent to wake them on school days. They are like zombies getting ready for school and find it hard to be alert and pay attention in class. Because they are sleep deprived, they are sleepy all day and cannot do their best."

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It could also turn into substance abuse. If your mind isn't in the right place to make the right decisions, you probably wont make the best decisions.

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It can also cause teens to want more fatty unhealthy foods and could cause weight gain which could potentially lead to an eating disorder.

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"Biological sleep patterns shift toward later times for both sleeping and waking during adolescence -- meaning it is natural to not be able to fall asleep before 11:00 pm.....Most teens do not get enough sleep — one study found that only 15% reported sleeping 8 1/2 hours on school nights."

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Being a teenager is stressful. Sleep can help manage the stresses, and if school started later teens would be able to take on the pressures of the day better. This could potentially save lives.

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"Skipping sleep can be harmful — even deadly, particularly if you are behind the wheel. You can look bad, you may feel moody, and you perform poorly. Sleepiness can make it hard to get along with your family and friends and hurt your scores on school exams, on the court or on the field."

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Not enough sleep can also lead to aggressive actions. Teens could also get aggravated very easily, which could turn the sweetest person into an unrecognizable character.

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Not getting enough sleep can, "Limit your ability to learn, listen, concentrate and solve problems." You need to be able to do all these in school, and if school starts so early and teens are going to bed so late, they will not be able to live up to their full potential.

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The Suprachaismatic Nucleus is the part of the brain that controls the circadian biological clock. It is located in the hypothalamus, which responds to light and dark signals.

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"...for teens the strongest circadian “dips” tend to occur between 3:00-7:00 am and 2:00-5:00 pm, but the morning dip (3:00-7:00 am) can be even longer if teens haven’t had enough sleep, and can even last until 9:00 or 10:00 am."

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The circadian rhythm is steady until we get to our teenage years. The shift in the circadian rhythm makes teens more alert and awake at night. Most teens feel that it is hard for them to fall asleep until 11:00. Since we have earlier start times for school, we do not get the proper amount of sleep (9 1/4 or at least 8 hrs)

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"Sleep is regulated by two body systems: sleep/wake homeostasis and the circadian biological clock ."

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Not getting enough sleep can be deadly. "For example, drowsiness and falling asleep at the wheel cause more than 100,000 car crashes every year. When you do not get enough sleep, you are more likely to have an accident, injury and/or illness." (This is a huge problem since almost half of the kids at a high school drive to school in the mornings. They are putting themselves and others in danger by getting behind the wheel while tired.