Association between Screen Time and Sleep Quality among Young Adults: A Cross-Sectional Study
Abstract
Background: Excessive screen time has become an increasingly common lifestyle
habit among young adults due to widespread use of smartphones, tablets, laptops, and
other digital devices. Prolonged exposure to electronic screens, particularly during
nighttime, may adversely affect sleep quality by disrupting circadian rhythm and
melatonin secretion. Poor sleep quality among young adults is associated with
impaired cognitive function, reduced academic performance, mood disturbances, and
decreased quality of life.
Aim: The present study aimed to evaluate the association between daily screen time
and sleep quality among young adults aged 18–39 years.
Materials and Methods: A cross-sectional observational study was conducted among
135 healthy young adults of both sexes aged 18–39 years. Data regarding
demographic profile, daily screen exposure, and sleep habits were collected using a
structured questionnaire. Sleep quality was assessed using the Pittsburgh Sleep
Quality Index (PSQI). Participants were categorized as good sleepers and poor
sleepers based on global PSQI score. Statistical analysis was performed using SPSS
version 22, and association between screen time and sleep quality was assessed using
the Chi-square test. A p-value <0.05 was considered statistically significant.
Results: Out of 135 participants, 128 (94.81%) were identified as poor sleepers while
only 7 (5.19%) had good sleep quality. Increased screen time showed a highly
significant association with poor sleep…
How strong is the evidence?
Evidence Hub reads this as a cross-sectional, done in people. Its evidence level is 4 of 5 (Low · observational). Observational designs can show an association but not prove cause. Reported size: 135 participants or records.
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