Light Marijuana Consumption Improves Sperm Count

Light Marijuana Consumption Improves Sperm Count
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More and more researches are focusing on cannabis and its effects on humans. In a new study, the scientists observed that light marijuana consumption improves sperm count in male users. However, the results of the recent research, published in the Human Reproduction journal yesterday, are contradicting the outcomes of some previous studies which concluded that cannabis is increasing the risks of infertility.

“Our findings were contrary to what we hypothesized at the start of the study,” study Feiby Nassan from the Harvard T.H. Chan School of Public Health, and the leading author of the new study.

“These unexpected findings from our study highlight that we know too little about the reproductive health effects of cannabis and, in fact, of the health effects in general, to make strong statements about the impact of cannabis on health, with the possible exception of mental health. We know a lot less than we think we know,” added Jorge Chavarro, Associate Professor of Nutrition and Epidemiology at the Harvard T.H. Chan School of Public Health.

Light Marijuana Consumption Improves Sperm Count

The research has been conducted by analyzing the data of 662 men, evaluated for infertility between 2000 and 2017 by the Massachusetts General Hospital Fertility Center. Every subject was asked to give sperm and blood samples and answer questions regarding how often they smoke marijuana.

The study revealed that, out of the 662 men, “365 men who had ever smoked cannabis had significantly higher sperm concentration than the 297 men who had never smoked it,” as EurekAlert reported.

“Our findings were contrary to what we hypothesized at the start of the study. However, they are consistent with two different interpretations. First, these findings are consistent with a U-shaped relation whereby low levels of cannabis use could benefit sperm production due to the well-known role played by the endocannabinoid system,” said Dr. Nassan.

“An equally plausible interpretation is that our findings could reflect the fact that men with higher testosterone levels are more likely to engage in risk-seeking behaviors. And that the relations we see between cannabis smoking, sperm counts, and testosterone levels are because men with higher testosterone, within normal levels, have higher sperm counts and are more likely to smoke cannabis,” he concluded.


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