A new study from the University of Wisconsin School of Medicine and Public Health suggests that Facebook may be a potential tool in finding individuals who are suffering from depression. However, study authors say that it should not be used as a substitute for clinical screening. Researchers analyzed the Facebook profiles of 200 college sophomores and juniors. Twenty-five percent of the students exhibited one or more symptoms of depression through their online activities, whether those were references to decreased interest or pleasure in activities, a change in appetite, sleep problems, loss of energy, or feelings of guilt or worthlessness. Only 2.5 percent of the profiles displayed enough information to warrant screening for depression. One of the most interesting findings? Students who complained of depression symptoms often had others in their social networks reach out to help them.