(Telegraph) A gene that could explain why the red mist descends
A “red mist” gene that could be responsible for ordinarily peaceful people becoming violent and aggressive while drunk has been identified by scientists.
The team of researchers have found a genetic mutation in the brain that may contribute to violently impulsive behaviour under the influence of alcohol. The researchers sequenced the DNA of a number of impulsive volunteers and compared those sequences with DNA from an equal number of non-impulsive people. They found that a single DNA change that blocks a gene known as HTR2B was predictive of highly impulsive behaviour.
The gene affects serotonin production and detection in the brain. Serotonin is a neurotransmitter known to influence many behaviours, including impulsivity.