I had depression before. I took medi 血清素。and now I\'m alot better! Happier than the time before I was sick . That 血清素is something u lack in our brain . It is like a supplement . I don\'t feel any side effect wor ? Better see dr la . U will know how much better after taking the right medicine . It is not how u can control the negative feeling because simply u don\'t have enough 血清素to feel positive 。exercise can help a bit only but I never hear ppl exercise and recover . See see dr pa add oil