Scientists are raising concerns about what might happen when men have sex less than once a week — and the findings may surprise you.

While there’s no “perfect” number when it comes to intimacy, new research suggests that infrequent sexual activity could have long-term health effects, especially for men over 40.

A 2019 study found that men who go long periods without sex are more likely to experience erectile dysfunction and even an increased risk of prostate cancer. Researchers noted that men who ejaculated fewer than seven times a month were more likely to develop the disease than those who did so 21 times or more.

The science behind it isn’t entirely clear, but experts believe regular intimacy helps maintain circulation, balance hormones, and support cardiovascular health. In fact, a 2024 study linked low sexual frequency to a threefold increase in overall mortality, even after accounting for age and lifestyle factors.

Beyond physical benefits, maintaining closeness with a partner can lower blood pressure, ease anxiety, and boost mood — all important for long-term well-being.

So while passion naturally ebbs and flows, doctors say keeping the spark alive may do more than strengthen relationships — it might just protect your health too.