A study has revealed that ejaculating a certain number of times per month may help reduce the risk of prostate cancer. According to research published in European Urology, the number is 21 times per month. The study followed 32,000 people over 18 years and found that those who ejaculated more often had a lower rate of developing prostate cancer. It does not matter how it happens—alone, with a partner, or even wet dreams all count. There appears to be no upper limit beyond human endurance.

Why does ejaculation have this health impact? Dr. Anne Calvaresi suggests it may help flush out chemicals that could become harmful if they build up in semen. Another possibility is that men who ejaculate more often may simply have healthier lifestyle habits that decrease their disease risk. Either way, the correlation is notable. Additionally, orgasm releases beneficial brain chemicals like oxytocin, serotonin, and dopamine, which support mood and overall well-being.

Letting things build up too much might actually be bad for you. Some experts even suggest that prolonged abstinence could lead to “penile atrophy”—in other words, use it or lose it. While the study focused on cancer prevention, the emotional and hormonal benefits of regular ejaculation are also worth considering.

So if you are looking for a simple, natural way to support long-term health, this research offers a compelling reason to keep things moving. Of course, always consult your doctor for personalized medical advice. But for many, knowing that 21 times a month could help reduce cancer risk is both surprising and motivating.