Effects of pot on male sperm

Boston, MA — Men who have smoked marijuana at some point in their life had significantly higher concentrations of sperm when compared with men who have never smoked marijuana, according to new research led by Harvard T. Chan School of Public Health. The study, conducted in the Fertility Clinic at Massachusetts General Hospital, also found that there was no significant difference in sperm concentrations between current and former marijuana smokers. The study was published on February 5, in Human Reproduction.
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07.01.2021
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How does smoking marijuana affect sperm?

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Cannabis and Male Fertility: A Systematic Review

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Marijuana smoking linked with higher sperm concentrations

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Although more research on cannabis and sperm health is needed, it seems that using cannabis frequently can decrease the health of your sperm, making you less fertile. Studies have suggested that cannabis use decreases sperm count. One study looked at 1, young Danish people with penises aged between 18 and 28 years. It found that regular cannabis smoking — defined as more than once a week — was associated with 28 percent lower sperm concentration and a 29 percent lower total sperm count.
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