Later Sleep and Wake Times Linked to Unhealthy Habits in Teens

Penn State study finds connection between adolescent sleep patterns and diet, exercise behaviors.

Apr. 12, 2026 at 2:27pm

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A glowing neon outline of a sleeping teenager's silhouette against a dark background, with pulsing lines of light emanating from the figure to represent the connection between sleep and overall health.Neon visualization of the link between adolescent sleep patterns and cardiometabolic health factors.Hershey Today

A new study from Penn State College of Medicine has found that when teenagers have later bedtimes and wake times, they are more likely to have poor diets and sedentary lifestyles - factors that can impact long-term cardiovascular health. The research suggests sleep may be an important, yet often overlooked, risk factor for cardiometabolic issues even in adolescents.

Why it matters

Establishing healthy sleep, diet, and exercise habits during the teen years can have lasting impacts on cardiovascular wellness later in life. This study highlights the need to consider sleep as part of a holistic approach to improving adolescent health outcomes.

The details

The Penn State researchers analyzed data from over 800 teenagers, finding that those with later bedtimes and wake times tended to have poorer quality diets, consume more sugary drinks, and engage in less physical activity compared to their peers with earlier sleep schedules. The researchers say these lifestyle factors can increase the risk of conditions like obesity, high blood pressure, and type 2 diabetes.

  • The study was conducted between 2018 and 2020.

The players

Penn State College of Medicine

A medical school and research institution located in Hershey, Pennsylvania.

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The takeaway

This study underscores the importance of prioritizing healthy sleep habits in teenagers, as part of a broader effort to promote cardiovascular wellness and prevent long-term health issues. Addressing sleep patterns may be a key strategy for improving diet, exercise, and other lifestyle factors that impact teen health.