#Youthdepression

A major new study has confirmed a troubling link: as preteens spend more time on social media, their risk of experiencing depressive symptoms rises significantly—a finding with profound implications for parents, educators, and policymakers in Thailand and around the world. The longitudinal research, published in JAMA Network Open and conducted by a team at the University of California, San Francisco (UCSF), tracked nearly 12,000 children over three years and delivered the strongest evidence yet that increased screen time can actually cause later depression in youth, not just reflect existing mood changes. For a country like Thailand, where smartphone and social media penetration among youth have soared, these findings raise urgent questions about digital wellbeing and mental health support for the next generation.

A major study confirms a troubling link: as preteens spend more time on social media, their risk of depressive symptoms rises. This finding matters for Thai families, teachers, and policymakers aiming to safeguard young people’s mental health in a digital age.

Researchers from UCSF analyzed data from a large, long-term study of nearly 12,000 children, following them from ages 9–10 into early adolescence. They found that daily social media use increased from about seven minutes to 73 minutes over three years, while depressive symptoms rose by about 35 percent. Importantly, the study shows that greater social media engagement precedes increases in depressive symptoms, suggesting the online environment itself can influence mood, not just reflect existing struggles. In Thailand, where smartphone use among youth is widespread, these findings prompt urgent questions about digital wellbeing and support systems in schools and communities.