Men who have difficulty maintaining erections may benefit from exercise or physical activity, according to a new analysis.

A growing body of evidence has suggested physical activity could improve erectile function, but the authors of the new report say that until now, no one had looked at all the studies together.

The topic is important, they told Reuters Health by email, because the prevalence of erectile dysfunction ranges from 8 percent among men in their 20s and 30s, up to 37 percent among men in their early 70s.

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