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Most of the patients in the studies were in their late 50s and early 60s, but the findings are a cautionary tale for people in any age group who are slowing down.
Exercise might even be considered cross-training for sex, said Mercedes Carnethon, a heart disease researcher at Northwestern University's Feinberg School of Medicine, who wasn't involved in the research.
"Engaging in regular physical activity is a requirement for maintaining a long, safe, healthy sex life," Carnethon said.
"If this isn't more motivation for people to maintain some degree of physical activity, I'm not sure what is," Carnethon said. "Get out and walk. Do something."
Copyright 2011 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
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