Can a mans sperm cout be reduced by drinking alcohol about every weekend? And I would say about an 18 pack of beer.

According to the sites that I found on the following search, Sperm Count Alcohol Consumption - Google Search one of the habits to avoid doing is consuming alcohol if you want to have a good sperm count.

And after 18 beers, I doubt one could be very good at getting to that point anyway

It would reduce brain cells

It screws up the sperm cells...