Pregnant drinking 'affects sperm'

In a study of almost 350 young men, sperm levels were a third lower in those whose mothers had drunk more than four drinks a week during pregnancy compared with teetotallers.

The Danish researchers told a fertility conference these men may have a harder time getting their partner pregnant. UK experts said alcohol may not be the issue, but a marker for other factors. Current advice is to avoid alcohol during pregnancy, but those who do so are advised to have no more than one or two units of alcohol once or twice a week.