Cannabis smoking associated with higher sperm count, study finds
February 7, 2019

From Bloomberg:

A history of smoking cannabis has unexpectedly been linked to greater fertility in men.

The result came as a big surprise to scientists measuring the sperm counts of more than 600 men from couples attending a fertility clinic.

They expected cannabis to have a detrimental effect on sperm count and fertility.

Instead, those participants who admitted ever taking the drug turned out to have higher sperm counts than non-users.

The finding does not necessarily mean that smoking cannabis increases the chances of fatherhood, the study authors and other experts were quick to point out.

There could be a non-causal explanation for the association, such as the effect of the male hormone testosterone on both sperm count and risk-taking behavior such as smoking cannabis.

U.S. lead researcher Dr Jorge Chavarro, from the Harvard T.H. Chan School of Public Health in Boston , said: "These unexpected findings highlight how little we know about the reproductive health effects of marijuana, and in fact of the health effects of marijuana in general.

"Our results need to be interpreted with caution and they highlight the need to further study the health effects of marijuana use"...

Continue reading at Bloomberg...

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