February 22 - February 22, 2010 Duncan H Irschick Call me...

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February 22, 2010 Duncan H Irschick Call me Duncan Research : animal athletics Readings posted today Quiz due Friday 1. Hormones and Society a. Steroids in sports a.i. What effects do they cause? a.ii. Why are they so “bad”? 2. Endocrine disruptors a. What are they? b. What do they come to contaminate our surroundings? Steroids in the public eye Not to pick on the Yankees. .. Barry Bonds – steroids – had to keep changing helmet size because when you take steroids you’re head swells due to the rush of water to the head Testosterone – steroids are chemical precursors to testosterone Testosterone organized the phenotype o Human male jaws and testosterone High levels testosterone at birth= large jaws …but could still have low levels of testosterone levels as an adult Tree Lizards in Arizona Different levels of testosterone when young results in males of different colors Blue – high testosterone o Energetic o Feisty o Die young Orange – very low levels
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This note was uploaded on 11/18/2011 for the course BIO 105 taught by Professor Adler,irschick,podos during the Fall '08 term at UMass (Amherst).

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February 22 - February 22, 2010 Duncan H Irschick Call me...

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