A growing number of American high school students are chronically sleep-deprived, according to new data published in the Journal of the American Medical Association. The trend has intensified since 2007, raising questions about broader systemic factors rather than solely individual health challenges.
Worsening Sleep Trends
In 2023, 77% of high school students reported getting less than the recommended eight to ten hours of sleep per night, up from 69% in 2007. The most striking increase was in very short sleepers – those getting five hours or less – which jumped from 16% to 23% over the same period.
While insufficient sleep (seven hours or less) remained relatively stable, the rise in extreme sleep deprivation is significant. This means more teens are operating on severely limited rest, potentially impacting their health, academic performance, and overall well-being.
Demographic Shifts and Risk Factors
The increase in sleep deprivation was observed across all demographic groups, but the rise was more pronounced among Black students compared to white students. This disparity highlights existing health inequalities and the need for targeted interventions.
However, the study also found that even students without identified behavioral health risk factors (such as mental health issues or substance abuse) experienced similar or greater increases in sleep deprivation. This suggests the problem extends beyond individual struggles.
Structural Issues at Play
Researchers point to early high school start times as a major contributing factor. During puberty, teenagers experience a natural shift in their sleep-wake cycles, making it difficult to fall asleep before 11 p.m. and wake up before 8 a.m. This is linked to changes in melatonin production.
Forcing teens to wake up early for school goes against their biological rhythms, making chronic sleep deprivation more likely. The broad trend across demographics suggests that systemic issues, like school schedules, are overriding individual behaviors.
This trend is alarming because chronic sleep deprivation can lead to increased rates of depression, anxiety, substance abuse, and car accidents. It also affects cognitive function, making it harder for teens to concentrate in school and perform well academically.
The data underscores the urgent need for schools and policymakers to consider later start times and other structural changes that support healthy sleep habits in adolescents.
