A City Guide To Nanzhang Chengguanzhen for A human being’s genetic constitution largely determines the production of hormones and enzymes. Particular hormones and enzymes induce most boys from a very early age to be relatively more aggressive, while other hormones and enzymes induce most girls to be relatively more nurturing. Good evidence also suggests that in the aggregate women are genetically endowed with greater verbal ability, perceptual speed, and fine motor skills, while men have the edge in spatial perception and quantitative calculation. These differences are likely the the question of human nature 3 9 product of hundreds of thousands of years of genetic adaptation among early hominids faced with the distinct demands of childrearing and hunting.19 Yet even here, where genetic influences are ascertainable, the question of whether culture can and should attempt to augment, controvert, or ignore particular biological inheritances is left unanswered. While the existence of a genetic leash is evident, its specific length and level of elasticity are largely unknown. Moreover, the extent to which we should stretch it remains very much open to debate. A City Guide To Nanzhang Chengguanzhen 2016.