Who would have thought of exercise as a prescription for depression?  Here’s the link to an article which shows clear, scientific evidence that exercise helps to alter mood and can act as an anti-depressant.  It recognises that further studies are needed to develop the research, but nevertheless offers some hope to those coping with depression, who often feel that they are not in control of their mood and their lives in general.   And exercise is free, which is rare in the world of medicine.