which hormone .....????

[abc]

which hormone is responsible for hapiness and sadness in the human ????
regards
abc

[Leong]

if you know the answers, i suppose you don't go to a pharmacy, buy the happy hormone and inject it into your arm ? if it is, it is so sad .

[fafalone]

Actually, he's referring to endorphins/dopamine... but I don't believe either of them are classified as hormones... endorphins are just chemicals and dopamine is a neurotransmitter... these are primarily involved in regulation of 'happiness'.
Sadness as it relates to chemicals in the brain seems to be more related to the neurotransmitter serotonin.

And yes, you can go to the pharmacy and buy stuff that makes you happy (from in generally a good mood up through the most intense pleasure you'll ever feel); but you need a prescription ;P