Even a single drink of alcohol is enough to impair someone’s ability to reason quickly and detect errors, according to a study that electronically monitored brain waves in volunteers given drinks. Dutch researchers put sensors on the scalps of 14 men who were tested in three sessions after having a placebo, a single alcohol drink, or several drinks. The volunteers then were challenged in a computer test that required quick thinking and instinctive reasoning. Changes in brain action were quickly detected even after a single drink, leading the researchers to conclude that alcohol, even in “modest doses,” was enough to erode the mind’s ability to detect and correct errors. The […]