Many people suffer from depression either sporadically or chronically. One option to help treat depression is exercise. Neuroskeptic does a very good job at dissecting the latest study that examined this issue.
The bottom line is it appears to depend on context. It depends on how the exercise is prescribed – it is not what you say, but how you say it. If a doctor, or loved one, says dismissively to some one with depression to just go exercise it is unlikely to help. However, if the message and program of exercise is offered in a more sympathetic package it will likely help. It is the meaning behind the exercise that seems more important than the physiology – at least for humans.
keep your brain healthy and happy – join a friend for a jog, chat about a good book you are both readingto further enrich and engage your brain.