ITmedia News article

A Toyama University research team analyzed 3,403 local government employees and found that longer internet use outside work on weekdays was associated with more depressive symptoms.

People who spent 4 or more hours online for non-work purposes on weekdays showed a stronger link to depression than those using the internet for under 2 hours.

No clear association was seen between time spent using electronic devices at work and depressive symptoms.

The findings suggest that off-duty internet habits may be relevant to mental health and worth reviewing.