photo credit: Johnny Jet Article Highlights: It was thought that a single gene determined susceptibility to depression. New study finds that single gene for depression is not the case. It's thought that this new study will change future research in this field. Researchers found "no evidence of an association between the serotonin gene and the risk of depression". This will stir great debate. Click the image or click here to read the full article. While searching the internet to bring you even more things that make you say