"Happiness gene" affects our well-being

No doubt: Some people are born with a happier disposition than others. And now there is scientific proof. Recent research has found a link between a gene called 5-HTT (long known to regulate serotonin) and our happiness levels. There are two versions of this gene, a "long" one and a "short" one. People who inherited two "long" 5-HTTs variants from their parents have been found to be - on average - the most satisfied with their lives. Folks who have one "long" variant and one "short" variant are a bit less happy. And the group of people with two "short" variants of the gene were found to be the least happy of the bunch. So if you're feeling a bit sad today - blame your parents...