Researchers at Northwestern University suggest antidepressants have powers beyond lifting mood.
In a study, patients taking a placebo were compared to those on the antidepressant Paxil.
Patients on the medication were more emotionally stable and they became more outgoing.
Researchers say those who reduced their emotional instability were less likely to then suffer other mental problems such as anxiety or eating disorders.
There's more on this study in the Journal of Archives of General Psychiatry.