Can cannabis increase sperm counts? 

Smoking weed actually increased sperm counts in men who are moderate users in one recent study

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A number of studies have produced varying results on the effects of smoking pot on sperm.

In fact, one recent study has shown that smoking weed can actually increase sperm counts in men who are moderate users. The study between 2000 and 2017 examined sperm counts in 662 men who smoked two joints a week.

Now researchers in Denmark think that the reason for different results may have something to do with how much weed you smoke. But it’s not known whether cannabis effects human testis directly or indirectly through the central nervous system.

Researchers say this shows that more studies are required to get a clearer picture of what effect smoking a jazz cigarette (or a lot of them) may have long term.