Press releases from Human Reproduction - 2019

Moderate cannabis use surprisingly linked to an increase in sperm concentration

Researchers urge caution and call for more research on effects of cannabis on reproductive health

Researchers investigating the effect of cannabis smoking on men’s testicular function have made the unexpected discovery that it is linked to higher sperm counts and higher testosterone levels among moderate users compared to men who never smoked it. 

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No overall increased risk of cancer in children born after fertility treatment

Children born after assisted reproductive technology (ART) do not appear to be at greater risk of developing cancer than other children, according to the first study to look at the long-term cancer risk in ART children compared to those in the general population or who were naturally conceived by subfertile women.

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