Seeing happiness in ambiguous facial expressions can reduce aggressive behavior in healthy adults and young people at high-risk of criminal offending and delinquency, according to a new study.
Researchers linked the brain chemical, hypocretin to happiness, finding similar effects to dopamine.
The researchers looked at two longitudinal studies that analyzed the well-being and other factors of thousands of people over the course of 30 years.
Scientists found a gene that appears to make women happy. The gene seems to work only for women and the research may explain why women are happier than men, more often.