It will lead to more stress if you lose, but in case that you play and win, then for sure, a lot of positive hormones are going to be released in our body and we feel good and think that gambling is a good way to relieved our mind and body of stress. But then again, that will not be always the case, most of the times we are going to lose specially if you play and have in mind that it's will be a stress reliever and nothing more. But if you think about the money that you are going to lose in the long run, then it might just add up to the negative feelings. So it's better to go to like exercise and meditation or hobbies to fight out that stress to maintain our mental health.