(HealthDayNews) -- Bikers are more likely than runners to suffer from impotence, according to a Boston University medical school questionnaire sent to 1,025 members of running and cycling clubs.
That's because sitting on a narrow, pointed bike seat can crush the cavernosal artery, which controls the ability of the penis to fill with blood.
A typical narrow seat places too much weight on the perineum, the area between the anus and scrotum where the artery is located, researchers say.
The best way to avoid the injury is to make sure the seat is level. Tilting up or down puts more pressure on the groin. Or try one of the new bike seats with the oval gaps, which look something like a toilet seat.
