
Sleep is incredibly important for high school students, but many are not getting enough. Research shows that teens don't get sleepy until late at night, but high schools often start early in the morning. This can lead to sleep deprivation, which has been linked to poor mental and behavioural health, as well as an increased risk of chronic conditions such as diabetes and obesity.
| Characteristics | Values |
|---|---|
| Recommended hours of sleep | 8-10 hours a night |
| Average hours of sleep | Less than 8 hours a night |
| Impact of sleep deprivation | Poor focus and learning ability, increased risk of chronic conditions such as diabetes, obesity and poor mental health |
| Impact of sleep deprivation | Increased use of drugs, cigarettes and alcohol |
| Impact of sleep deprivation | Increased risk of depression |
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What You'll Learn

The importance of sleep for mental health
Sleep is incredibly important for the mental health of high schoolers. Research shows that teens don't get sleepy until 10:45 or 11 pm, but high school classes often start at 7:05 am. This means that many high schoolers are not getting the recommended 8-10 hours of sleep per night.
Poor sleep can limit teens' ability to focus and learn, and insufficient sleep is associated with an increased risk of chronic conditions such as diabetes, obesity and poor mental health. Studies have shown that students who get at least eight hours of sleep are less likely to report symptoms of depression.
U.S. Surgeon General Vivek Murthy has raised concerns about youth mental health, noting that a third of teenagers overall and half of teenage girls have reported persistent feelings of hopelessness. Sleep deprivation can lead to worse mental and behavioural health, which can affect the whole family.
Additionally, there is a greater use of drugs, cigarettes, and alcohol when a teen is getting less than eight hours of sleep.
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The link between sleep and chronic conditions
Sleep is essential for high schoolers' mental health and well-being. Research shows that teens don't start feeling sleepy until around 10:45 or 11 pm, yet many high schools start as early as 7:05 am, resulting in sleep deprivation. This lack of sleep can have serious consequences, as it is linked to an increased risk of chronic conditions such as diabetes, obesity, and poor mental health.
The biological shift in the circadian clock during adolescence causes teens to struggle to fall asleep before 11 pm. This, combined with early school start times, creates a recipe for sleep deprivation. The effects of this deprivation can be far-reaching, impacting not only the teens' ability to focus and learn but also their overall health and well-being.
The consequences of sleep deprivation in high schoolers are concerning, and addressing this issue is crucial. Later school start times have been proposed as a solution, but implementing such changes can be challenging due to transportation and political constraints. However, the benefits of ensuring teens get adequate sleep cannot be overstated, as it can help improve their mental and physical health and reduce the risk of developing chronic conditions.
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The biological shift in the circadian clock
Adolescents have a unique challenge of a biological shift in their circadian clock, causing them to struggle to fall asleep before 11 pm. Research shows that teens don't get sleepy until 10:45 or 11 pm. This is a problem when high school classes start as early as 7:05 am, as is the case in Nashville.
The circadian clock is an internal process that regulates the sleep-wake cycle and repeats on each rotation of the Earth, around every 24 hours. During puberty, the circadian clock shifts, causing teens to feel more alert in the evening and making it harder for them to fall asleep early. This is a natural part of adolescent development.
The American Academy of Sleep Medicine recommends that teens sleep for 8-10 hours a night. However, studies have shown that 7 out of 10 high school students are not getting enough sleep on school nights. This can have a negative impact on their health and well-being. Poor sleep can limit teens' ability to focus and learn, and insufficient sleep is associated with an increased risk of chronic conditions such as diabetes, obesity and poor mental health.
Indeed, sleep deprivation in teens leads to worse mental and behavioural health, which can affect the whole family. A study of 9,000 students in Minnesota, Colorado and Wyoming found that students who got at least eight hours of sleep were less likely to report symptoms of depression. Furthermore, there is a greater use of drugs, cigarettes and alcohol when a teen is getting less than eight hours of sleep.
It is clear that teens benefit from later school start times, but in many communities, it is politically difficult to make this change.
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The impact of sleep on learning and focus
Sleep has a significant impact on learning and focus. According to the American Academy of Sleep Medicine, teens should sleep for 8-10 hours a night. However, studies show that 7 out of 10 high school students are not getting enough sleep on school nights. Poor sleep can limit teens' ability to focus and learn. It can also lead to an increased risk of chronic conditions such as diabetes, obesity and poor mental health.
Teens have a unique challenge due to a biological shift in their circadian clock, which causes them to struggle to fall asleep before 11 pm. This is further exacerbated by early school start times, with some high schools starting as early as 7:05 am. Research shows that teens don't get sleepy until around 10:45 or 11 pm, which means they are not getting the recommended amount of sleep.
The impact of sleep deprivation on learning and focus is significant. When teens don't get enough sleep, they may struggle to pay attention in class and have difficulty retaining information. This can lead to lower academic performance and even affect their mental health. Studies have shown that students who get at least eight hours of sleep are less likely to report symptoms of depression and have better mental and behavioural health.
Additionally, insufficient sleep can increase the risk of engaging in unhealthy behaviours. Studies have shown that teens who get less than eight hours of sleep are more likely to use drugs, cigarettes, and alcohol. This highlights the importance of ensuring that teens get the recommended amount of sleep to support their overall health and well-being.
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The effects of sleep deprivation on behaviour
Sleep deprivation in high schoolers can have a significant impact on their behaviour. Research has shown that teenagers who get less than eight hours of sleep are more likely to use drugs, cigarettes, and alcohol. Furthermore, insufficient sleep is associated with an increased risk of chronic conditions such as diabetes, obesity, and poor mental health. Poor sleep can also limit a teen's ability to focus and learn.
Teens have a unique challenge due to a biological shift in their circadian clock, which causes them to struggle to fall asleep before 11 pm. This is further exacerbated by early school start times, with some high schools starting as early as 7:05 am. As a result, many high schoolers are not getting the recommended amount of sleep, which can lead to a range of behavioural issues.
Studies have found that students who get at least eight hours of sleep are less likely to report symptoms of depression. This highlights the importance of adequate sleep in maintaining positive mental health and well-being.
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Frequently asked questions
High schoolers need more sleep because they have a biological shift in their circadian clock, causing them to struggle to fall asleep before 11 pm.
According to the American Academy of Sleep Medicine, teens should sleep 8-10 hours a night.
Poor sleep can limit teens' ability to focus and learn. It is also associated with an increased risk of chronic conditions such as diabetes, obesity and poor mental health.
Later school start times would help high schoolers get more sleep. However, this is often difficult to implement due to transportation issues and political challenges.











































