Being able to keep your cool or lose your temper is down to genes, according to a new study.
Isolation of a gene called DARPP-32 helps explain why some people fly into a rage at the slightest provocation, while others can remain calm.
More than 800 people were asked to fill in a questionnaire designed to study how they handle anger.
The German researchers also administered a DNA test to determine which of three versions of the DARPP-32 gene people were carrying.
The gene affects levels of dopamine, a brain chemical linked to anger and aggression.
Those who had the "TT" or "TC" versions of the gene portrayed significantly more anger than those with the "CC" version.
May 6, 2009
