University of Glasgow study links circadian rhythm disruption to mental health risks

A study conducted by the University of Glasgow involving over 91,000 participants aged 37 to 73 has identified a link between irregular circadian rhythms and increased mental health risks. Researchers found that individuals with unstable biological rhythms—characterized by high activity at night and low activity during the day—face a 6% to 10% higher risk of mood issues, including anxiety, gloominess, difficulty regulating emotions, and loneliness.

While the study does not claim that smartphone use directly causes these mental health issues, it notes that mobile devices can disrupt circadian rhythms. Constant notifications, social media interaction, and video consumption often lead users to delay sleep, thereby altering their natural biological cycles and reducing sleep quality.