London: Scientists have discovered a gene that makes people happy, but it is said to work only in women.The findings could help explain why women are often happier than men, the predominantly female team of US researchers said.The study focused on a gene called MAOA that affects the levels of feel-good chemicals in the brain.Almost 350 men and women were asked how happy they were and gave a saliva sample that was tested for their DNA.The MAOA gene comes in two versions, a highly active and a less active type.Women with the less active type were happier than others, the researchers found – and those with two copies of the “happy” type of MAOA had the sunniest dispositions of all.Some 59 percent of the women studied had one copy and a lucky 17 percent had two – leaving only around one in four women lacking the happiness gene.
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