Following a review of scientific evidence the U.K. Chief Medical Officers issued new guidelines on the use of alcohol. Clear evidence shows even the consumption of 1 drink per day is linked with increased risk of several cancers and recognizes the claimed protective benefits for heart disease is weaker than first thought. They state there is no safe level for pregnant women, and warns against binge drinking. (Supporting evidence papers are available here.)
PositiveTip: Avoiding all alcohol consumption is still good advice for limiting risks.