dopamine is a chemical your brain produces. yeah it causes happiness for a little bit but dopamine is not directly happiness. its basically a drug your body produces, thats why its so addicting and fun to get likes or upvotes or a simple text msg and why its also depressing when you dont get upvotes or likes because its like youre having a withdraw of a drug that you are used to having in order to be happy. dopamine isnt bad but letting your life be pushed by the need to have it all the time will cause you harm eventually. mostly mentally speaking, that i know of. im not a nerd, ive just had the experience before