SINGAPORE-The more time people spend on Facebook, the higher the risk of suffering from depression, a study has found. The study by researchers at Nanyang Technological University also found that those with signs of depression linked to Facebook use go on to spend even more time on the social networking site-and sink deeper into a vicious circleof depression. The Singapore-wide online study started in 2016 with 1, 240 people aged between 18 and 64.... In the three years it took to finish, parti