Health Issue: CHEMISTRY OF VIOLENCE
Friday, July 23, 2010
Hormone that triggers love can also lead to war The so-called love hormone - oxytocin - that spurs mothers to protect their offspring may also trigger a sense of self-sacrifice and lead to aggression among warriors. Researchers have found that in the heat of battle they have the same chemicals running through their blood streams as protective mothers, meaning they develop incredibly strong bonds with each other but become extremely aggressive to outsiders, reports the Telegraph. The effect revolves around the hormone oxytocin which is released at times of stress and when people socialize with each other. But the scientists have found that this chemical, often referred to as the love or bonding formone, also makes them like mothers incredibly aggressive to outsiders. Using a computer simulation game they found that volunteers given a spray of oxytocin bonded more quickly and deeply with their own group but became much more hostile to outsiders. lead researcher Carsten De Dreu, of the University of Amsterdam, said the phenomenon was known as "parochial altruism" or "tend and defend". This means high oxytocin levels produce "in-group love" and "out-group aggression". "Oxytocin is a double edged sword. It makes you kinder to your group but more aggressive to those outside," the Telegraph quoted De Dreu as saying. Ttudy has been publoished in journal Science. De Dreu thinks the production of oxytocin, which increases at times of stress and in new mothers, has evolved since hunter gathering times when food was scarce and groups had to compete to survive. |