Article about Monoamine Oxidase A (MAOA)
And so one has always been wondered why in some terms, women are a bit different than men, in fact of physiology, mood and light-hearted-ness:
The MAOA gene may be a good beginning of this study. Pratically, scientists at the University of South Florida report that the Monoamine Oxidase A (MAOA) is associated with happyness in women: so, this is the gene of happyness, but works only for women. Read the article for details.
My Youtube channel
Watch, i made a Super Mario 64 level