A very interesting study that examined the effects of phthalate exposure during pregnancy on behavioral characteristics of boys found that they were much less aggressive due to the anti-androgen effects of some phthalates (i.e., they block testosterone). We’ve been warning our patients for years to minimize the use of plastics, however now I’m rethinking that. Perhaps what the world needs is to take a chill pill and become less violent. If plastics are the answer, then I guess we’ll just have to put up with smaller penises and lower testicular weights.
Int J Androl. 2009 Nov 16. [Epub ahead of print]