tag:blogger.com,1999:blog-7423880838207203660.post7430548961339037590..comments2024-01-10T09:56:49.324-05:00Comments on Respiratory Therapy Cave: Ideas and economies change, but people never doRick Freahttp://www.blogger.com/profile/01132949384071592216noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-7423880838207203660.post-75026123338680834672012-03-11T18:51:28.542-04:002012-03-11T18:51:28.542-04:00Studies of twins have shown that there is a large ...Studies of twins have shown that there is a large component of our behavior that is genetic or at least genetically influenced (IQ, divorce, the propensity to marry, marital quality, social support, alcoholism, being overweight) while there is also a large compenent that is environmental (parental discipline, warmth, religion, politics, language).<br /><br />While the genetic component does not change over periods of hundreds of years of time, the environment component will. Societies evolve over time, and with societal evolution you see slight behavioral changes in people brought on by changes in the media (print, radio, television, internet), school/work (science, industrialism, women working), transportation (american railway system, Eisenhower's highway system, jet airlines), democracy, socialism, equal-rights (women's suffrage, slavery), wars, and so on...Anonymousnoreply@blogger.com