'Anger' Gene Found in Women

While studying heart disease, researchers found a variation in genes that can make women more hostile. The study looked at how genetics, emotions, and health are connected. This variation gives one piece that can contribute to the puzzle of heart disease. This gene variation affects serotonin receptors on brain cells, which help brain cells communicate. Serotonin plays a key role in sleep, emotions, and physical well-being. It could be possible that a pill or genetic treatment that can make women less hostile. But that would be a tricky topic, seeing as our genes affect behavior and personality, so that would essentially changing a person's personality with treatment. While they have found a variation in this gene, it is nearly impossible that this one gene completely affects a person's personality completely.

http://health.msn.com/womenshealth/articlepage.aspx?cp-documentid=100157863&GT1=9145