According to WHO more than 300 million people of all ages suffer from major depression world-wide. Affecting more women than men this condition also leads to suicide and is responsible for around 800000 deaths every year. The causes of depression range from circumstantial triggers to certain health conditions medications and even genetic factors. However there are quite a few confusions in the medical fraternity about the gene and depression connect. A new study published in the American Journal of Psychiatry has revealed that genes including SLC6A4 and others that were initially associated with depression are actually not linked to it.