Is there a genetic component for happiness?
['inally, a systematic review performed based on existing information. Results of studies on genetic factors indicated an average effectiveness of genetic about 35 -50 percent on happiness. ', 'The MAOA gene predicts happiness in women.', 'Although twin studies estimate that genetic factors account for 35-50% of the variance in human happiness, knowledge of specific genes is limited.', 'This investigation examines association between happiness and monoamine oxidase A (MAOA) genotype. ', 'Those with the syndrome have a predisposition toward apparent happiness and paroxysms of laughter, and this finding helps distinguish Angelman syndrome from other ones involving severe developmental handicap. ', 'The heritability of happiness was estimated at 22% for males and 41% in females. ', 'Biometric studies have shown that happiness is strongly affected by genes.', 'The clustering of the four different measures (quality of life in general, satisfaction with life, quality of life at present, and subjective happiness) was explained by an underlying additive genetic factor and an underlying non-additive genetic factor. ', ' happiness and the environment are influenced by genetic factors and family upbringing', 'The results suggest that many putative indicators of the environment are highly heritable and, indeed, that the same genes that affect the environment may affect happiness as well.']
['Results of studies on genetic factors indicated an average effectiveness of genetic about 35 -50 percent on happiness. The MAOA gene predicts happiness in women. The heritability of happiness was estimated at 22% for males and 41% in females.']
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