Masturbation is generally good for you. It triggers a cocktail of hormones that reduce stress, improve mood, and help with sleep, and it carries essentially zero physical health risks when done in moderation. For people with a prostate, frequent ejaculation is also linked to a meaningful reduction in prostate cancer risk. The old warnings about masturbation causing harm have no scientific support.
What Happens in Your Body
When you masturbate to orgasm, your body releases dopamine (often called the “feel-good hormone”) and oxytocin (sometimes called the “love hormone”). Both increase positive emotions like happiness and calm. At the same time, they work to counteract cortisol, which is the hormone your body produces when you’re stressed. The net effect is a noticeable shift toward relaxation.
Orgasm also triggers the release of your body’s own version of cannabis-like compounds. Plasma levels of one of these compounds rise significantly after masturbation, which likely contributes to the deep sense of ease many people feel afterward. On top of that, your body releases endorphins, the same natural painkillers that kick in during exercise. This is why masturbation can temporarily relieve headaches, menstrual cramps, and other minor aches.
Stress Relief and Better Sleep
The hormonal surge from orgasm has a direct calming effect. The combination of oxytocin, prolactin, and endorphins released afterward creates what researchers describe as a “soporific effect,” meaning it makes you sleepy. Prolactin in particular is associated with the feeling of satisfaction and drowsiness that follows orgasm. That’s why many people find masturbation before bed genuinely helpful for falling asleep faster.
The window for this sleep-promoting effect appears to be short. Those relaxing neurohormones seem to have a limited time frame to help with sleep onset, so masturbating close to when you actually want to fall asleep is more effective than doing so hours earlier.
Prostate Cancer Risk
One of the most significant findings involves prostate health. A large study tracked by Harvard Health Publishing found that men who ejaculated 21 or more times per month had a 31% lower risk of prostate cancer compared to men who ejaculated four to seven times per month. A separate analysis found that men averaging roughly five to seven ejaculations per week were 36% less likely to be diagnosed with prostate cancer before age 70 than men who ejaculated fewer than two to three times per week.
These numbers don’t prove that ejaculation directly prevents cancer. But the association is strong and consistent across studies, and the mechanism may involve flushing out potentially carcinogenic substances from the prostate gland. Ejaculation from masturbation counts the same as ejaculation from sex in these findings.
A Short-Term Immune Boost
Sexual arousal and orgasm also give your immune system a temporary nudge. In one study, researchers measured white blood cell counts before and after orgasm and found a significant spike five minutes afterward. Natural killer cells, a type of immune cell that targets viruses and abnormal cells, showed the largest increase. A specific subset of immune cells involved in fighting infections also rose.
This boost was transient. Within 45 minutes, most cell counts had returned to baseline. So masturbation isn’t a replacement for good sleep, exercise, or nutrition when it comes to immune health. But it’s a small, measurable positive effect that adds to the overall picture.
Myths That Won’t Die
Masturbation does not cause blindness, hair loss, acne, hairy palms, infertility, or permanent genital damage. None of these claims have any scientific support.
The hair loss myth is a good example of how these ideas get started. One version claims that semen contains so much protein that ejaculating depletes what your body needs for hair growth. In reality, each ejaculation contains only about 3.3 to 3.7 milliliters of semen. That’s a tiny amount of protein, nowhere near enough to affect hair. Another version claims masturbation raises testosterone, which increases a hormone linked to hair loss called DHT. But research actually shows the opposite: testosterone levels rise after men abstain from masturbation for several weeks. Either way, there’s no evidence that masturbation changes DHT levels at all.
When Habits Can Become a Problem
Masturbation is physically safe, but there are two scenarios where it can cause issues. The first is frequency that interferes with your daily life, relationships, or responsibilities. If you’re regularly skipping work, avoiding social situations, or choosing masturbation over intimacy with a partner in ways that cause conflict, that pattern is worth examining, potentially with a therapist.
The second is technique. Masturbating with an extremely tight grip, excessive pressure, or high-speed vibration can gradually desensitize the nerves in your genitals. Over time, you may find it difficult or impossible to reach orgasm through partnered sex because the sensation doesn’t match what you’ve conditioned yourself to need. This is sometimes called “death grip syndrome,” though it’s not a formal medical diagnosis.
The good news is that this kind of desensitization is reversible. Reconditioning typically starts with about a week off from any sexual stimulation, followed by three weeks of gradually reintroducing touch with gentler, more varied techniques. Most people notice a return to normal sensitivity within that timeframe, though some need a bit longer. The key is simply varying your approach so your body doesn’t get locked into one specific pattern.
The Bottom Line on Frequency
There’s no magic number for how often you should masturbate. Some people do it daily, others a few times a month, and both are perfectly normal. The health benefits, particularly the prostate cancer data, suggest that more frequent ejaculation is associated with better outcomes, but that doesn’t mean you need to hit a quota. If it feels good, fits into your life without friction, and you’re using varied, moderate techniques, masturbation is one of the simplest things you can do for your physical and mental well-being.