The combined use of marijuana more than once per week and other recreational drugsreduced the sperm concentration by 52% (95% CI: −68, −27) and total sperm count by 55%(95% CI: −71, −31). Marijuana smokers had higher levels of testosterone within the same range as cigarette smokers.
A study conducted in Denmark found that regular weed smoking was associated with a lower sperm count in men aged between 18 and 28 years old. The exact figure was a 29 percent lower sperm.
Those who admitted to regularly smoking pot had a sperm count that was 29 percent lower than those who reported lighter use or didn't smoke at all. Meanwhile, men who used other recreational drugs alongside marijuana had sperm counts reduced by 55 percent and sperm concentrations reduced by 52 percent.
Oct. 13, -- Smoking marijuana makes sperm less fertile -- even if the woman is the one who smokes it, a new study shows. Marijuana-smoking college men volunteered for the study led by Lani J.
Previous research has suggested that smoking marijuana can lower sperm count, or the number of sperm in semen when it's ejaculated. This new study, however, is the first to link THC.
A new study found that smoking weed regularly lower a man's sperm count by about a third. Researchers at the University of Copenhagen in Denmark found that sperm concentrations were 28 percent.
One study found that men who smoke marijuana frequently have significantly less seminal fluid, a lower total sperm count and their sperm behave abnormally. All of these factors could adversely affect fertility.
According to the findings, "sperm concentration, total sperm count, percentage of motile sperm, and percentage of morphologically normal forms were all lower among men smoking marijuana more than once per week.".
Exactly. There's no way to % prove that marijuana is the absolute cause of the decrease in sperm count, but, "the link between marijuana and lower sperm levels held," which means that they found consistent/strong correlation. Marijuana can alter the endocrine system, which regulates reproductive hormones, and lower the man's levels of testosterone (the hormone responsible for sperm production). Marijuana is also toxic to human sperm, reducing motility and fertilization potential.
Apart from the not-so-good effect on sperm count, weed results in lower testosterone level as well as erectile dysfunction too. A bunch of studies have looked at how smoking marijuana can affect the hormone that drives men's sexual functions - testosterone. Aug 30, · Marijuana may do bad things to sperm Newser editors, Newser staff Published a.m. ET Aug. 30, Heavy pot smoking may lower your sperm count says a new study.
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