Less Sleep, More Bathroom Trips
Sleep Deprivation Boosts Urine Production
WebMD News Archive
Aug. 8, 2007 -- Lying awake at night increases urine production -- meaning
more trips to the bathroom, especially for men, Danish researchers find.
At night, urine production slows -- one of evolution's contributions to a
good night's sleep.
But what happens if you can't get to sleep? To find out, Birgitte Mahler,
MD, and colleagues at Aarhus University Hospital, Denmark, studied 20 healthy,
young adults, 10 male and 10 female.
After standardized food and beverage intakes, each study participant spent
two days and nights in the lab. On one randomly assigned night, each study
participant was allowed to sleep. On the other night, they were kept awake.
On the sleepless nights, both men and women produced more urine than they
did on the nights they slept. But this effect was more pronounced in the men
than in the women.
Mahler and colleagues reported the findings at the American Physiological
Society conference "Sex and Gender in Cardiovascular-Renal Physiology and
Pathophysiology" held in Austin, Texas.
Guys, how many
nighttime bathroom breaks do you take? Tell us about it on
Health: Man-to-Man message board.