Study Shows Time Online Shapes Outcomes, Not Just Content Exposure

Adolescents and young adults increasingly build social ties through social media, gaming, and messaging platforms, where identity development, peer bonding, and emotional feedback are often mediated by algorithms and network dynamics. At the same time, these environments can intensify harms such as upward social comparison, social exclusion, and harassment—factors linked to adverse mental health outcomes, including depression and suicidal ideation.

A new national analysis shifts attention from teens to college students by testing two related exposures simultaneously: how much time students spend online (screen time outside school/work) and whether they report experiencing online harassment. Researchers then evaluate how these factors relate to seriously thinking about suicide within the past year, using statistical models that adjust for confounding mental health and life stress variables.

The study draws on the Healthy Minds Study, a large, multisite survey of college students’ mental health and daily experiences. More than 46,000 participants reported their non-school online time and whether they had been harassed online, enabling researchers to model exposure–outcome relationships at scale.

To capture gender-linked vulnerability, the investigators stratified effects across cisgender men, cisgender women, and transgender and gender nonconforming students. They compared patterns using gender-specific analyses while accounting for related conditions such as depression severity, sleep quality, and financial stress, reducing the likelihood that observed associations are driven by broader psychosocial factors.

Results indicate that online harassment is associated with elevated suicidal thoughts across all gender groups studied. In contrast, the association between time spent online and suicidal ideation differs by gender: the link is strongest among cisgender men, suggesting that earlier research—which has often emphasized girls and young women—may have missed a key risk pattern in young men.

Lead author Seungbin Oh, PhD, LPC, NCC, emphasizes that underrepresentation of college-aged young adults and limited examination of combined digital exposures have constrained prior conclusions. By pairing time online with harmful experiences and explicitly testing gender differences, the study provides a more granular view of how digital environments may shape suicide-related risk.

The findings also have clinical implications. Providers serving college populations may need to assess digital stressors directly—screen time, platform-related engagement, harassment exposure, and harassment-related distress—not only traditional anxiety and depressive symptoms. Such targeted screening may uncover distress that students do not volunteer.

For public health, the work supports gender-stratified prevention strategies and highlights barriers to help-seeking among young men, who may express or conceal distress differently. The study appears in the American Journal of Public Health, framing digital life as a measurable, actionable component of suicide risk assessment.