Medical Science
Excessive Screen Exposure Linked to Sleep Issues and Depression in Teens
2025-04-03

A recent study highlights the adverse effects of prolonged screen time on adolescent sleep patterns, leading to an increased likelihood of depressive symptoms, particularly among young females. Conducted by Sebastian Hökby from Karolinska Institutet in Sweden and associates, this research was published in the journal PLOS Global Public Health. The findings suggest that excessive leisure screen usage can disrupt sleep quality and duration within a short period, subsequently affecting mental health. The investigation followed 4,810 Swedish students aged between 12 and 16 over one year, focusing on how their screen habits influenced sleep and depression.

The study's results revealed that heightened screen exposure significantly affected sleep within three months, reducing both its length and quality. For girls, the connection between screen time and depression was largely mediated by sleep disturbances, which accounted for roughly half of the correlation. In contrast, while boys also faced sleep disruptions due to screen use, these were not strongly tied to subsequent depression. Researchers noted that screen activity tended to delay bedtime, interfering with natural circadian rhythms.

Further analysis indicated that among male participants, direct links existed between extended screen engagement and depressive tendencies after twelve months. However, the pathway through which this occurred differed from that observed in female subjects. This divergence underscores the need for tailored approaches when addressing the impact of technology on mental health across genders.

Based on their findings, the researchers concluded that reducing screen time could potentially lower the prevalence of depressive states among young people. They advocate for public health policies aimed at curbing excessive screen use, suggesting that such measures might alleviate psychological burdens experienced by adolescents, particularly Swedish women. By fostering healthier digital habits, society may help mitigate rising rates of youth depression linked to modern technology consumption.

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