Moderate cannabis use 'can BOOST sperm count and testosterone levels'

Moderate cannabis use 'can BOOST sperm count and testosterone levels'

Men who smoke marijuana may have higher sperm counts than those who have never used the drug, a surprising new study finds.

The study shows that the men who reported smoking marijuana had an average sperm count of 63 million sperm per milliliter of semen, in comparison to 45 million sperm per milliliter of semen among those who have never used the drug.

Additionally, the hormone levels of these men were also different.

It also didn't seem to matter whether the men had smoked in the past, or if they were current smokers, the difference remained the same. In the previously mentioned 2015 study, the men who used recreational marijuana a couple of times per week had lower sperm counts and lower sperm concentrations than the men who used marijuana less often.

In the new research 1,143 semen samples were collected from 662 men between 2000 and 2017.

Prof Chavarro said: "First, we do not know to what extent these findings may apply to men in the general population. Secondly, the study is a great opportunity to spark interest on investigating the health effects of marijuana particularly with the backdrop of increasing legalization of recreational use in the US coupled with a greater perception that marijuana poses no health risks".

On the other hand, they wrote, it could simply be that men with higher testosterone levels (and therefore higher sperm counts) are more likely to engage in risk-seeking behaviors-like the illicit practice of smoking weed.

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

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"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", said Jorge Chavarro, associate professor of nutrition and epidemiology at Harvard Chan School.

"Our findings were contrary to what we hypothesized at the start of the study", study lead author Feiby Nassan, a postdoctoral research fellow at the Harvard T.H. Chan School of Public Health, said in the statement. "But who knows - it may turn out that marijuana is actually positive for sperm production, and we've been getting the answer wrong", Chavarro said. The study would need to be redone using a broader sample of participants to get truly scientifically viable results. This could also be responsible for their higher sperm count.

A new study suggests that cannabis does effect your sperm, but maybe not in the way you might think.

The researchers have cautioned that there are limitations to the findings, as some of the participants may have under-reported their cannabis use.

Although there are more sperm, their quality might be affected by marijuana use in ways that remain undetected.

However, each additional year that had passed since a man last used marijuana a slight rise in sperm count would appear.

Nassan also said that the results may have been skewed by cannabis prohibition. While he's not certain of the drug's impact on male fertility, he believes it's more likely that men with higher testosterone levels will be more inclined to use marijuana. About 55% of the men admitted to having smoked at least two joints (or the equivalent amount of marijuana in another form) in their life, 44% in the past. The authors of a study published in the journal Human Reproduction wrote of "a growing perception that marijuana poses few health hazards and with increased legalization and decriminalization of recreational marijuana use worldwide".

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