Feb 19, 2026
3 min read
What if the frequency of sex is directly related to the health of the prostate?A study from Harvard University, published in the European Journal of Urology, analyzed this topic, which combines sex, prevention and treatment, and the well-being of men.Over the years, researchers followed nearly 32,000 men to try to understand whether sex could affect the risk of prostate cancer.The results are surprising and raise interesting questions about prevention.and the role of physical training in healthy aging is still unknown.
When frequency of intercourse becomes scientific data
The study, conducted by Harvard researchers, is based on rigorous follow-up: 31,925 men aged 20 to 49 were interviewed at various stages of their lives, paying particular attention to the period around the age of forty.The researchers wanted to find out if the frequency of ejaculation could affect the occurrence of prostate cancer, one of the most common cancers in men.
The collected data speaks for itself.Participants who reported ejaculating at least 21 times a month had an approximately 31% lower risk of developing prostate cancer compared to those who reported a frequency of less than 7 times a month.This figure, impressive at first glance, is not based on a simple coincidence: it was established after a rigorous statistical examination, taking into account other health factors such as lifestyle or medical history.
This study doesn't say there's an "ideal dose" of sexual activity to protect ourselves, but it does highlight an interesting biological phenomenon: frequent ejaculation could have a real protective effect on the prostate, just like diet, exercise or early diagnosis.
Protection mechanisms are still poorly understood
Why does ejaculation affect prostate health?Researchers have posited several physiological pathways to explain this link.
First, the prostate has a "self-cleaning" functionIt produces seminal fluid that, if left standing for too long, can accumulate carcinogens.Regular sexual activity helps disperse this waste and maintain a healthy cellular environment.
Next is the issue of chronic inflammation.It has long been known that persistent inflammatory processes can promote the appearance of abnormal cells, the first steps on the path to eventual cancerous transformation.However, regular sexual activity appears to be associated with a reduction in certain anti-inflammatory substances, thereby reducing this risk.
Finally, there is probably a link with hormonal and immune regulation.An active sex life stimulates certain hormones and can strengthen immune surveillance of abnormal cells.Combined mechanisms may explain why more regular sexual activity is statistically associated with a reduced risk of cancer.
Prevention is not just limited to sex
The study's authors stress the conclusion: Frequent ejaculation is not a miracle solution.Prostate cancer prevention is based on a number of factors outside of sexual intercourse.
A balanced diet rich in fiber, antioxidants and omega-3 fatty acids plays a big role in overall health, as does regular physical activity.Medical follow-up is also important, including a PSA (prostate-specific antigen) test and a rectal exam starting at age 50 or if there is a family history.
The researchers point out that their study shows a statistical correlation, not absolute causality.Other parameters such as stress, exposure to pollution or hormonal disturbances can also affect prostate health.
Breaking the taboo on senior sexuality
One of the indirect lessons of this study is to be more open about sexuality after the age of 60. Erectile problems or a decrease in libido are sometimes the first signs of hormonal or prostatic dysfunction, but they are rarely mentioned during medical consultations.
Encouraging a fit and fulfilling sex life can have many benefits: improving morale, quality of life and perhaps, researchers suggest, reducing some health risks.In this sense, sex should no longer be considered as a general indicator of vitality, but as a real factor of well-being and prevention.
That's why Harvard research has led the way, but it shouldn't forget the importance of a global approach: exercise, diet, screening, and mental health are still important pillars of healthy aging.
