A pint a day is good for the brain cells, according to a Japanese study thatfound moderate drinking can improve intelligence, the Daily Telegraph reportstoday. A team from the National Institute for Longevity Sciences testedthe IQs of 2,000 people aged from 40 to 79. They found that on average men whodrank moderately had an IQ 3.3 points higher than those who were teetotal.Women drinkers scored 2.5 points higher than females who did not drink. TheJapanese scientists defined moderate drinking as fewer than 540ml - almost apint - of sake or wine a day. They said the type of alcohol did not influencethe results. Volunteers drank beer, whisky, wine and sake. The scientistswarned that the findings should be treated with caution and that people whodrank were perhaps brighter in the first place and the alcohol still impairedtheir intelligence, but not to the level of the teetotallers.