Study shows men can benefit from regular aerobic workouts

WASHINGTON POST
Regular aerobic activity is not only tied to better mood, improved sleep and a lower risk of death.
It's also associated with a lower risk of colon polyps and colon cancer in men, according to a study in Cancer Epidemiology, Biomarkers and Prevention.
Researchers at the Fred Hutchinson Cancer Research Center in Seattle randomly assigned 100 healthy women and 102 healthy men, aged 40 to 75, to two groups:
One was prescribed an hour of moderate to vigorous exercise six days per week; the other received no exercise prescription.
After a year, an inspection of the lower colon lining showed less cell growth among men who did intense exercise than among those who exercised less. No such relationship was found among women, however.