Why some people are wired to be lightweight drinkers

The mystery of how some friends end up tipsy after a single glass of wine, while others can drink pint after pint without seeming any worse for wear has finally been solved by scientists. Scientists at Washington State University have found that, for some people, a receptor in the brain overreacts to even small amounts of alcohol, leaving  them swaying, stumbling and suffering from slurred speech. For hardcore drinkers the opposite happens, with the receptors taking far longer to be stimulated, which can lead to problem drinking and even alcoholism. The researchers believe that increasing the sensitivity of the brain  receptor – known as GABAA – can prevent people from drinking too much. Alcohol units “It takes them from drinking the equivalent of three to four units of alcohol in one…


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