LONDON  People with poorer mental health are more likely to browse negative content online, which can worsen their symptoms, according to a groundbreaking study led by researchers at University College London (UCL). Published in the online journal Nature Human Behaviour, the study establishes a causal and bi-directional relationship between mental health and online behavior, revealing how exposure to emotionally negative content can perpetuate a cycle of distress. The research team, co-led by