Researchers from the University of North Carolina at Chapel Hill surveyed 1,100 men over the age of 18 about their exercise habits and sexual history, including sexual activity, arousal, desire, attractions, fantasies, appetite and more. This is part of the "female athlete triad", which also includes osteoporosis and disordered eating.
Men who push themselves with high intensity exercise reach a "tipping point" at which they are too exhausted to have sex - or are just not interested.
Researchers at the University of North Carolina had almost 1,100 adult male volunteers fill out three different sets of questionnaires: one asking about their typical sexual behavior, one questioning them on their exercise habits, and a final set focused on general health and medical histories.
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But the research also showed, as previous studies have, that light and moderate exercise was linked with a stronger libido. They were categorized in groups based on the length and intensity of their workouts as well as on the strength of their libido. Sometimes males will reach a certain limit at which they feel completely overwhelmed by so much workout that they do not want to have sex. The conclusion, therefore, was that regular exposure to high intensity and endurance exercise was "significantly" associated with a lower libido state in men.
They were also asked whether they do intense, moderate or light exercise. Rather, the team aimed to link high levels of chronic male endurance training to possible fertility problems - and low sex drive is, in fact, a fertility problem. This occurs when testosterone and the luteinizing hormone are suppressed. The researchers stated that longer and more intense sessions of training went hand in hand with lower libido levels in men. He and his colleagues hope to conduct experiments that directly track exercise, hormone levels and libidos to learn more about their interactions. It's a fine line, however, as being a couch potato can also tank his (and your) sex drive.
Prof Hackney added: "Fertility specialists will often ask a woman about whether and how much she exercises". The next time your man shows least interest in sex, you know what can be the reason. Body temperatures that rise above 96 degrees can increase the likelihood sperm will die. The men were asked about general health and wellness as well as workout routine and sex life, according to the paper, which was titled "Endurance Exercise Training and Male Sexual Libido".