Shift Work May Put Damper on a Man’s Sex Life
Disrupted sleep patterns could explain the link, three studies suggest
From the WebMD Archives
In one of the three studies, researchers examined 75 infertile men who were shift workers, 96 other infertile men and 27 fertile men who’d recently fathered children.”We found that in men who are seen for infertility, those who work night shifts have significantly lower sperm counts than those who do not,” Pastuszak said. “We think that too much or too little sleep alters circadian rhythms and thus changes hormone levels and the expression of genes that are important for producing sperm.” The other studies examined responses from almost 2,500 men who went to a men’s clinic and answered questionnaires about urinary issues.”We found that men with shift-work sleep disorder had worse urinary issues, worse erectile function, and worse symptoms of low testosterone as well as lower testosterone levels,” Pastuszak said.The urinary issues included problems such as frequent urination, urgent urination, urinary hesitation and nighttime urination. “They’re most often caused by either bladder dysfunction or prostate enlargement,” Pastuszak said.
As for other potential explanations for the urinary problems, “we also asked the men about their use of tobacco and alcohol, symptoms of depression, exercise and other medical conditions they had,” he said. “We found that shift work most significantly impacted urinary symptoms, sperm counts and low testosterone symptoms.”Sleep specialist Dr. Dennis Auckley, an associate professor of medicine at Case Western Reserve University in Cleveland, cautioned that the new research should be considered preliminary. It’s difficult to study the effects of shift work since it can vary widely with different schedules of hours and days off, Auckley said, and another study found no connection between shift work and measurements of semen quality.If shift workers do have urological problems, Auckley added, “there’s a long list of causes for these problems that should be evaluated before one could attribute their symptoms to shift work.” What can shift workers do to protect themselves?According to Pastuszak, “these men can take the following steps to improve sleep quality: Go to bed at regular times; sleep in a dark room; avoid alcohol and caffeine prior to going to bed; and limit use of computers, tablets, phones, televisions and other bright artificial lighting for at least 30 minutes before going to bed.”The studies were presented May 13 at the American Urological Association’s annual meeting, in Boston. Research presented at meetings should be considered preliminary until published in a peer-reviewed journal.