The Truth About How Marijuana Affects Male Sexual Performance


By Justin Lehmiller
This article originally appeared on

Photo courtesy of Flickr user caveman_92223 and public domain.

If you’re anything like me, you’ve heard different things from different guys about how marijuana affects sexual performance. Some say it helps; others say it hurts. So what does the research say? What effect, if any, does weed have on your, uh, joint?

Although survey studies have found that many guys report sexual benefits of marijuana use, such as increased sexual stamina, it is difficult to know what to make of findings like this. While the conclusion that marijuana helps guys last longer in bed is tempting, we cannot rule out the possibility that this drug simply alters men’s perception of time. In other words, sex might seem to last longer when you’re high, but the actual amount of time you spend having sex might not really be any different from when you’re sober.

In the hope of providing a more definitive answer, biomedical researchers have begun to conduct more controlled research looking at the effect marijuana has on erectile functioning. Their scientific efforts reveal that, rather than helping erections, weed could potentially hurt them.

Animal studies have found that cannabis has an inhibitory effect on certain receptors inside the erectile tissue of the penis. We don’t have parallel research showing the same thing in humans (at least not yet) because of ethical and legal difficulties in conducting the research, but the animal findings suggest that marijuana is more of a sexual inhibitor than it is a sexual enhancer.

However, there are a few caveats.

For one thing, researchers have long argued that dosage is a very important consideration when looking at the effects of this drug, just like it is with alcohol. If you consume marijuana or —> Read More