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Harvard Study Shows Men Who Smoke Marijuana Are More Fertile

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There’s plenty of research showing that marijuana can improve things in the bedroom, but it’s not as clear whether it has the same effect in your pants. Studies about the effect of marijuana use on sperm count have had mixed results, at best. Guys who smoke weed, however, can take comfort in the findings of a large study published by Harvard University scientists on Tuesday. The sperm of marijuana smokers, it seems, is alright. Maybe even more than alright.

As the research team writes in the Human Reproduction study, the men who had smoked one or two joints of marijuana at least once in their lifetimes had a sperm count and concentration that was significantly higher than that of people who had never smoked marijuana in their lives, which is generally a good thing for a man’s fertility. More intense marijuana users also appeared to have higher levels of the sex hormone testosterone as well.

“Our findings were contrary to what we initially hypothesized,” said Feiby Nassan, Ph.D., the study’s lead author and research fellow at Harvard T.H. Chan School of Public Health. Previous research on marijuana smoking had suggested that doing so lowered sperm counts. Previous studies had strongly suggested that marijuana use lowers sperm count and concentration.

Not What They Expected

That didn’t appear to be the case for the 662 men who submitted 1,143 semen samples to the Fertility Center at Massachusetts General Hospital between 2000 and 2017. All of the men completed a self-reported questionnaire about their previous and current marijuana use. Their answers, combined with the team’s analysis of the samples, revealed that past or present marijuana use didn’t have a negative effect on sperm concentration and count at all.

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In total, the 365 men who had ever smoked marijuana had significantly higher sperm concentration than the 297 men who had never done so. Furthermore, there weren’t any statistically significant differences in sperm concentration between men who currently smoked weed and those who did in the past.

In addition, 316 men involved in the study gave blood samples on the same day they gave their first semen sample. Those from the marijuana smokers showed they had less follicle stimulating hormones (FSH, which is critical for sperm growth) in their blood. However, those who had “more intense use” of marijuana had significantly higher concentrations of testosterone (which is also needed for sperm development).

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Two Possible Explanations

These results are the exact opposite of what their hypothesis predicted, but they aren’t inexplicable.

“However, they are consistent with two different interpretations,” said Nassan, “the first being that low levels of marijuana use could benefit sperm production because of its effect on the endocannabinoid system, which is known to play a role in fertility, but those benefits are lost with higher levels of marijuana consumption.”

In other words, the amount of weed you smoke matters. Previous studies showing marijuana’s negative effects on sperm didn’t only focus on people who’d smoked once or twice in their lives.

“An equally plausible interpretation,” she continued, “is that our findings could reflect the fact that men with higher testosterone levels are more likely to engage in risk-seeking behaviors, including smoking marijuana.”

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This latter explanation is a reminder not to be too hasty in drawing conclusions from this study. Though it provides evidence that marijuana doesn’t hurt sperm count or concentration, there are other effects we may not be aware of yet — for example, marijuana’s effect on sperm gene expression, which scientists documented in a previous study.

Furthermore, the team points out, seeing as the majority of the participants were white, university-educated men who weren’t tobacco users, there’s no guarantee the findings will apply to everyone. And finally, there’s the chance that these men weren’t totally truthful about how much marijuana they used — weed was mostly illegal from 2000 to 2017, after all.

“Our results need to be interpreted with caution,” said Harvard T.H. Chan School associate professor of nutrition and epidemiology Jorge Chavarro, Ph.D., “and they highlight the need to further study the health effects of marijuana use.”

Weed is still illegal in Kenya even though there are efforts by legislators like Kibra’s Ken Okoth to have the herb legalized.


Kenya Insights allows guest blogging, if you want to be published on Kenya’s most authoritative and accurate blog, have an expose, news, story angles, human interest stories, drop us an email on [email protected] or via Telegram

Kenya West is a trained investigative independent journalist and a socio-political commentator on matters Kenya and Africa. Send me tips to [[email protected]]

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Joash Ombati The Brave Police Officer Who Took On Two Thugs And Recovered Sh400,000 Feted

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Ombati receiving a badge of honour from President Kenyatta.

Two suspects, Sameer Abdulaziz Kassim and Peter Kavoli Musili had posed as traders of construction materials on OLX.

They reportedly duped Amos Charo Saroan, an unsuspecting customer from Voi then robbed him.

Amos Charo traveled from Voi and met the duo in Nairobi CBD, then drove towards Westlands but he was pushed out of the speeding car after giving them KSh 732,000, an incident witnessed by Ombati.

Administration Police Constable Joash Ombati who was guarding a bank nearby, boarded a taxi to chase after the suspects.

Ombati receives his promotion.

The Police officer shot in the air forcing the thieves to surrender before he handcuffed them as members of the public watched with many urging him to shoot dead the suspects.

Mr. Ombati remained calm even as a furious mob urged him to shoot and kill.

He managed to recover Sh400,000 which was part of the Sh732,000 that the suspects had stolen from the complainant Mr Amos Charo.

Ombati would then be awarded by Interior CS Matiang’i for his bravery the government was given the heroic AP a Distinguished Service Award in November 2018 barely a month after his commendable work.

That wasn’t the end, Joash Ombati who single-handedly pursued two thugs in Nairobi and recovered KSh 400,000 has just been promoted to the rank of Corporal from being a AP Constable.

Friends help me Congratulate my brother.


Kenya Insights allows guest blogging, if you want to be published on Kenya’s most authoritative and accurate blog, have an expose, news, story angles, human interest stories, drop us an email on [email protected] or via Telegram
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Arts & Culture

Grace Msalame Sues Uganda’s Tourism Board For Illegaly Using Her Curvy Photos To Promote Sex Tourism

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Grace Msalame.

Uganda’s Ministry of Tourism unveiled a beauty pageant dubbed ‘Miss Curvy Uganda’ in a bid to promote tourism in the country, the ministry decided to use Kenya’s media personality Grace Msalame as the official face of their Miss Curvy Uganda contest without her knowledge. Whether it was a mistake or deliberate is unknown but now they’ll have to prove it in court.

Grace a media personality in Kenya has distanced herself from the beauty pageant saying she was never part of the program neither did she give consent for her photo to be used in the promotion.

The promotion poster.

In a statement, Msalame says, “I take great exception for the fact that my image and likeliness are being used to propagate, disseminate and encourage objectification of women. I don’t agree nor endorse such a message or anyone who’s a creator of the idea that women’s body are tourist attraction sites.”

Miss Curvy Uganda 2019 Participants.

While announcing that her lawyers are already on legal course for redress, Msalame says, “I reject any association to me that has been unlawfully created by Miss Curvy Uganda 2019 and its agents.”

The media personality claims that her brand has been immensely hit following the publications of her images. “Miss Curvy Uganda’s deliberate and calculated use of my image and likeliness to promote violation of women’s bodies had defamed my character and reputation damaged a brand that I’ve worked for so many years to establish, and subjected me to unwarranted and undeserved cyber bullying.” She says in her statement.


Kenya Insights allows guest blogging, if you want to be published on Kenya’s most authoritative and accurate blog, have an expose, news, story angles, human interest stories, drop us an email on [email protected] or via Telegram
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Club Associated With CS Echesa’s Deported Exotic Dancers Now Wants State To Pay Them Sh48M

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CS Rashid Echesa.

Balle Balle Club In Parklands that flew in the eight deported Pakistani women is now suing the state over the deportation of the dancers by police infringed on its rights and business. The club is seeking to be compensated with Sh48M which they claim was lost as a result of the deportation.

Arguing their case before Justice Luka Kimaru, the club represented by lawyer Evans Ondieki told the court that the dancers had been issued with special permits by the Sports CS Rashid Echesa to perform at the Balle Balle Club during the festive season but were arrested and detained illegally by police.

The court also heard, the girls were bundled out of the club and detained for 36 hours without bathing, which was a violation of their basic rights. They were held as investigations looked into the circumstances and validity of the permits issued by the CS who was alleged to have been involved in the human trafficking racket.

Earlier, the lawyers had sought for the court to compel CS Echesa and Matiang’i to personally compensate the deported girls despite having a standing order to produce them in court. The courts excused the CSs from the Sh9.1M fine and instead summoned detectives who gave out the girls to different state despite the case having been lodged in.

The club is now seeking orders restraining the DCI, DPP and Transnational Organised Crime Unit from entering, harassing, intimidating, arresting or doing anything prejudicial to its directors.


Kenya Insights allows guest blogging, if you want to be published on Kenya’s most authoritative and accurate blog, have an expose, news, story angles, human interest stories, drop us an email on [email protected] or via Telegram
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