It goes without saying that drinking in excess is bad for your health, but it might also hurt your chances of reproducing. In a survey of men between the ages of 18 and 28, researchers reported recently in the journal BMJ, as few as five drinks a week were found to affect sperm quality. In the study, men who drank an average of five to 10 units (one beer, glass of wine or 40 millitres of liquor is considered a unit) of alcohol a week had a slight decrease in sperm concentration, total sperm count and percentage of healthy and normal sperm.
HS in English
Drinking can be hazardous to sperm
The effect became much more pronounced at 25 units a week (3.5 drinks a day), and men who averaged 40 units a week had a 33 per cent reduction in sperm concentration compared with the lightest drinkers.