Usenet Newsgroups Environmental Health Perspectives 2010 Feb;118(2):273-7 "Maternal Bisphenol A Exposure Promotes the Development of Experimental Asthma in Mouse Pups" From: jmhoward@anthropogeny.com (James Howard) Environmental Health Perspectives 2010 Feb;118(2):273-7  "Maternal Bisphenol A Exposure Promotes the Development of Experimental Asthma in Mouse Pups" It is my hypothesis that the "secular trend," the increase in size and earlier puberty occurring in children, is caused by an increase in the percentage of individuals of higher testosterone. More specifically, I suggest this is due to an increase in the percentage of mothers of higher testosterone with time within the population. This exposes more fetuses to increased maternal testosterone with time within the population. I suggest this is the cause of the parallel increase in morbidity occurring within the population, such as obesity, cancer and breast cancer, diabetes, etc., including "failing schools," and asthma. Bisphenol A increases testosterone (Endocr J. 2004 Apr;51(2):165-9).  I suggest bisphenol a and the natural increase in women of higher testosterone may account for the increase in asthma.  Black women produce more maternal testosterone and asthma is increased in their offspring. James Michael Howard Fayetteville, Arkansas, U.S.A. Subject  Environmental Health Perspectives 2010 Feb;118(2):