Studie Bostonské univerzity zjistila, že užívání konopí nepoškozuje kvalitu spermií

A study conducted by researchers at Boston University School of Public Health indicates that cannabis use does not adversely affect sperm quality. The study analyzed semen samples from 921 men, examining key parameters such as semen volume, total sperm count, concentration, and motility. The results showed no significant differences between those who use cannabis and those who do not in these critical measurements.

These findings align with earlier research led by Professor Lauren Wise in 2018, which concluded that marijuana use by either partner does not decrease a couple’s chances of conception. This earlier study, part of the Pregnancy Study Online (PRESTO), surveyed over 4,000 women and their male partners in the United States and Canada. Approximately 14% of male participants reported using marijuana in the two months leading up to the study, yet the rates of conception remained unchanged regardless of cannabis use.

Although the current study suggests a lack of negative impact on sperm quality from cannabis use, the researchers noted that chronic cannabis consumption has been linked to lower testosterone levels and hormonal changes that could affect semen quality. They pointed out that while some studies have reported poor semen quality associated with chronic cannabis use, results have varied across different hormonal and reproductive metrics.

Contrasting opinions exist within the scientific community. A 2021 study found that men currently using marijuana had increased odds of exhibiting abnormal sperm morphology and a reduction in semen volume when compared to non-users. This inconsistency in findings highlights the need for continued research to clarify the relationship between cannabis consumption and male fertility. Factors such as dosage, frequency of use, and individual health profiles may significantly influence these outcomes.

Further investigations are necessary to better understand how cannabis may affect reproductive health in men, as the topic remains complex and not yet fully understood.