Why doomscrolling really IS bad news: It was a term popularised during the Covid pandemic. Now experts warn of the dangers of an addiction to bleak coverage

In the wake of the 2013 Boston Marathon bombings, which killed three people, a team at the University of California, Irvine in the U.S. surveyed more than 4,500 people. The study, published in 2019 in the journal Clinical Psychological Science, found that the more graphic, bloody images of the victims a person had seen on social media, the more likely they were to show symptoms of post-traumatic stress disorder (PTSD).