Drinking dulls brain's response to threats

Drinking alcohol dulls the brain's ability to detect threats, US researchers said on Tuesday in a study that helps explain why people who are drunk cannot tell when the guy at the end of the bar is angling for a fight.

They said the study is the first to show how alcohol affects the human brain as it responds to threats.

"You see this all of the time. People get into confrontations when they are intoxicated that they probably wouldn't get into when they are sober," said Jodi Gilman of the National Institutes on Alcohol Abuse and Alcoholism, whose study appears in the Journal of Neuroscience.