A study found men who work out too strenuously reach a "tipping point" which leaves them too exhausted to have sex and less bothered about trying. The men who did lower intensity exercises were seven times more likely to have a normal or higher sex drive than those with higher intensity workouts.
According to University of North Carolina researchers, a new study finds intense exercise could lower a man's libido.
"Fertility specialists will often ask a woman about whether and how much she exercises", the study author said.
Each of the men was then categorised according to whether they had short or long workouts and if they were light, moderate or intense. Excessive exercise can also cause fatigue both physically and mentally which may lead to lack of interest and desire in sex.
Exercise is believed to be better for your sex life - and healthier overall - than no workouts, but if you're finding yourself so worn out from the gym that you can't perform in the bedroom, it may be time to tone it down.
The study was published in the journal Medicine & Science in Sports & Exercise.
The results showed that exposure to higher levels of chronic intense and greater durations of endurance training on a regular basis are significantly associated with a decreased libido scores in men.
Anthony pointed specifically to women being asked more frequently about fertility and exercise when trying to conceive.