New study suggests smoking cannabis can make men more fertile

Cannabis: Sperm count and testosterone could increase after use | Daily Star

Men who had ever smoked marijuana had significantly higher sperm concentrations and sperm counts, as well as higher testosterone levels, compared to men who had never smoked weed. About half of the men in the sample had also gotten a blood test, allowing the researchers to look at their levels of hormones such as testosterone.

They noted that the average age of the men at the time of sample collection was 36 years and of these participants, 55 percent had used marijuana at some point in their lives.

The men taking part in this study completed a self-administered questionnaire that asked them about whether they had ever smoked cannabis, if they now smoked it, the number of joints they smoked a week, whether they ever quit and for how many years, age of starting to smoke it, the last time they smoked cannabis and the total duration of cannabis smoking. Meanwhile, just 5 percent of marijuana smokers had sperm counts below the level considered normal by the World Health Organisation, whereas 12 percent of non-smokers did.

Smoking cannabis could boost a man's sperm count, according to a study.

Professor Sheena Lewis from Queen's University Belfast said: 'In studies from our lab in Queens University, Belfast, we found exactly the opposite effects.

It's known that moderate- to heavy-use of tobacco or alcohol is tied to lower sperm counts, but whether marijuana has the same effect is up for debate, said Dr. Sarah Vij, a urologist at the Cleveland Clinic who was not involved with the study.

"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 behaviours, including smoking marijuana".

Respawn explain why there’s no Titans in Apex Legends
Looking at the numbers, Q3 ending on December 31, 2018, had EA hitting $1.289 billion in net revenue. That Battle Royale mode is still on target for March.

National Basketball Association trade deadline: LeBron James calls out loyalty double standard, again
He averaged 14.5 points and 6.7 rebounds in 25 minutes a game last season but has been a healthy inactive all this season. On Barnes' trade to the Kings, Mavericks head coach Rick Carlise addressed the deal post-game.

High hopes around the globe for 2nd Trump-Kim summit
A USA official previously told ABC News that the White House would pick one of three cities: Hanoi, Da Nang or Ho Chi Minh City. SAUL LOEB via Getty Images President Donald Trump first met with North Korean leader Kim Jong Un in June 2018.

Because the results were so counterintuitive, he added-and because they were not able to show a cause-and-effect relationship-they need to be interpreted with caution. Previous studies on marijuana have suggested that it is associated with negative effects on male reproductive health, but most of those studies had focused on animal models or on men with histories of drug abuse.

"We spent a good two months redoing everything, making sure that there wasn't any error in the data", said Dr Jorge Chavarro of the Harvard T.H. Chan School of Public Health. "We know a lot less than we think we know". But it's possible, the authors note in their study, that other unknown factors could still play a role. For example, in 2015, researchers from Denmark found that men who smoked marijuana a couple of times per week had sperm counts that were almost 30 percent lower than those who didn't smoke marijuana, or those who used the drug less frequently.

Experts looked at the effect of smoking an average of two joints a week among 662 sub-fertile men in Boston, Massachusetts.

It is estimated that 16.5% of adults in the US use marijuana, and support for legal recreational use of marijuana has increased dramatically in recent years. The researchers are quick to point out that despite the seemingly clear results, the research does have its limitations and that smoking pot shouldn't be used as a fertility aid.

He said studies in the past that suggest drug use lowers sperm count don't specify cannabis, and are usually an amalgamation of several drugs.

"An equally important limitation is the fact that most of the data were collected while cannabis was illegal in MA, so it is hard to know to what extent men may have under-reported use of cannabis because of social stigma or potential consequences related to insurance coverage for infertility services", Chavarro told Fox News.

Related news:

Hot News

isis-killer-beheading-video-story-top Gov. Edwards releases statement after Supreme Court blocks La. abortion clinic law
Feb 10, 2019 - 00:52
Thursday night's ruling would not prevent the court from eventually agreeing to take up the case and uphold the law in the future. Susan Collins (R-ME) that he would never undermine abortion rights, dissented, arguing the law should be allowed to take effect.

isis-killer-beheading-video-story-top Bahraini refugee footballer could be jailed in Thailand until August
Feb 09, 2019 - 01:11
In 2014, a court in Bahrain sentenced Araibi to 10 years in prison on multiple charges of vandalizing a police station. Al-Araibi appeared shackled and handcuffed at a Criminal Court hearing in Bangkok on Monday (February 4).

isis-killer-beheading-video-story-top Storm Erik set to lash United Kingdom with gusts of up to 70mph
Feb 09, 2019 - 01:00
Storm Erik has brought 60mph winds to Britain - with the wet and windy weather expected to continue through the weekend. Storm Erik was named by Irish forecaster Met Eireann on Thursday and overnight brought winds of 56mph to Cork.

isis-killer-beheading-video-story-top Amazon CEO Jeff Bezos accuses National Enquirer of 'blackmail'
Feb 09, 2019 - 00:59
Muddying the situation further, Bezos owns the Washington Post , which has written critical stories about Trump. Bezos , the Board has convened and determined that it should promptly and thoroughly investigate the claims.

isis-killer-beheading-video-story-top Ariana Grande Fires Back at Grammy Producer for "Lying" About Her
Feb 09, 2019 - 00:57
Rumour has it Grande is already working on a new album - or at least she's writing songs that might just end up on one. That characterization didn't fly with Grande, though. "I offered 3 different songs", she continued.

isis-killer-beheading-video-story-top Milwaukee Bucks: Giannis Antetokounmpo selects his All-Star team
Feb 09, 2019 - 00:49
James and Curry were the captains past year , but the order of their picks were not revealed or aired. James coveted Ben Simmons and convinced Antetokounmpo to work out a deal for Russell Westbrook .

isis-killer-beheading-video-story-top Frank Robinson and the legend of the Orioles 'HERE' flag
Feb 09, 2019 - 00:46
He became the first manager of the Washington Nationals after the franchise moved from Montreal for the 2005 season. "With that 1966 season, Robinson became the first - and remains the only - player to win the MVP in both leagues".

isis-killer-beheading-video-story-top Savage’s birth certificate says he was born in London borough
Feb 08, 2019 - 01:43
Police pulled over the Dodge after the rapper allegedly drove across the sidewalk. However, a source at ATF claims ICE was there, but is not listed on the report.

isis-killer-beheading-video-story-top Suarez pushing for Arsenal start after impressing Emery
Feb 08, 2019 - 01:30
Arsenal legend Sol Campbell has backed Unai Emery to succeed at the Emirates - but warns Tottenham have overtaken their local rivals.

isis-killer-beheading-video-story-top Meghan 'wrote to dad in attempt to build bridges
Feb 08, 2019 - 01:13
The same friend said that the attacks on Meghan have made them concerned about her well-being, especially since she is pregnant. In a series of interviews with PEOPLE magazine , they revealed why they wanted to break their silence after two years.

isis-killer-beheading-video-story-top Cavs Nearing Deal to Send Alec Burks to Houston Rockets
Feb 08, 2019 - 00:58
In exchange for Barnes, the Mavericks welcomed Jackson, 23, and Randolph, 37, who has not played this season. The Kings are receiving Alec Burks and a second-round pick from the Cavs as part of the deal.

isis-killer-beheading-video-story-top Nantes demand Cardiff pay the £15m transfer fee for Emiliano Sala
Feb 07, 2019 - 01:00
The families of Sala , Cardiff City's record signing at £15 million, and Ibbotson have been informed of the discovery. Cardiff are "surprised" that Nantes have made the demand while recovery attempts are still being carried out.

isis-killer-beheading-video-story-top Jennifer Lawrence & Cooke Maroney Engaged - See Her Ring!
Feb 07, 2019 - 00:54
Jennifer broke off her relationship with director Darren Aronofsky , who was 20 years her senior, in November 2017. The Oscar-winning actress has gotten engaged to NY art dealer Cooke Maroney , her rep confirmed to outlets .

isis-killer-beheading-video-story-top Sunny Hostin Pans Leaker Who Released Trump's Schedule
Feb 07, 2019 - 00:43
Some meetings during "executive time" are listed on more detailed schedules seen by fewer staffers than see the more general one. White House officials are expressing anger after an insider leaked months of President Donald Trump's private schedules.

isis-killer-beheading-video-story-top Texas man dies after e-cigarette explodes in his face
Feb 07, 2019 - 00:43
In May of last year, a 38-year-old Florida man died from a "projectile wound" caused by an exploding e-cigarette. His family says doctors knew he had a piece of e-cigarette lodged in his throat, but was never operated on.