While most countries urge that pregnant women refrain from drinking any alcohol during pregnancy, there are still women that do. And, in the UK, women are actually told that they can continue drinking during pregnancy, as long as it’s not more than one or two units a week. But a new study, conducted by Professor Peter Hepper from Queen’s University Belfast, says that this simply isn’t okay, and that even half a glass of wine could cause a fetus to stop breathing and moving for as long as two hours.