March 3, 2010 Steroid use from 1992 to 1999 has increased Even about 2% of 8 th graders are taking steroids Can testosterone be a good thing? • Male contraceptive • Can increase bone loss in elderly men • Treat dysmorphia (believed that one was born the wrong gender) High testosterone levels offer short term benefits, but long term risks High performance in short term vs. short life in long term Organized effect of testosterone • 2.4 digit ration in humans • What does this ratio mean? • What is your ratio? Whether phenotypes and personality are dictated by early child hood and genes=genetic determinism Genetic Determinism is the belief that DNA determines your phenotype and behavior Symmetry and society • Asymmetry and the animal/human form. • A beetle has bilateral symmetry • A coral polyp has radial symmetry • Sea coral has no symmetry The golden section (phi) and human body form If length of hand = 1 then the length of hand + forearm = phi
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