Men’s semen quality has been found to be associated with their lifespan, according to a recent study published in Human Reproduction. The study, which followed nearly 80,000 men for up to 50 years, revealed that those with a higher total number of motile sperm (sperm that can move or ‘swim’) had a longer life expectancy compared to men with lower sperm counts.
Led by Dr. Lærke Priskorn and Dr. Niels Jørgensen from the Department of Growth and Reproduction at Copenhagen University Hospital—Rigshospitalet, the research analyzed data from men who had their semen quality assessed between 1965 and 2015 due to reported couple infertility. The study included factors such as semen volume, sperm concentration, and motility.
The findings showed that men with a total motile sperm count of over 120 million could expect to live two to three years longer than those with lower sperm counts. The association between semen quality and mortality was not explained by any pre-existing medical conditions or educational level.
The researchers suggest that poor semen quality may serve as an indicator of underlying health issues that could affect both fertility and overall well-being. By identifying men with impaired semen quality, healthcare providers can potentially detect and mitigate the risks of developing certain diseases later in life.
In a commentary accompanying the study, Professor John Aitken from The University of Newcastle highlighted potential mechanisms linking poor semen quality to a shorter lifespan. He proposed that oxidative stress, which damages cells and influences semen quality, could be a key factor in the association between semen quality and mortality.
The study’s large sample size adds strength to the findings, although limitations include a lack of information on health behaviors and the inability to differentiate between different causes of low sperm motility. Future research will focus on understanding the specific causes of earlier mortality in men with poor semen quality.
In conclusion, the study sheds light on the importance of semen quality as a potential indicator of overall health and longevity in men. By monitoring oxidative stress and adopting measures to maintain a balanced state, individuals can potentially improve both fertility and lifespan. Further research is needed to explore the complex relationship between semen quality, health, and mortality.
