When he talks about bicycles, Irwin Goldstein, M.D., uses the same tone
that other physicians reserve for cigarettes.
"Men should never ride bicycles," he says matter-of-factly. "Riding should
be banned and outlawed. It's the most irrational form of exercise I could
ever bring to discussion."
In his office at Boston University Medical Center, Dr. Goldstein treats six
men a week on average, whom, he says, have become impotent from riding a
bicycle. Overall, this urologist estimates there are about 100,000 men who
have lost the ability to get or maintain satisfactory erections because of
penile damage inflicted by either the bike's top tube or its saddle
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