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A 59-year-old male asked:

Cancer: is there any large study scientific proof that regular exercise, in moderation, lessens the possibility of the diagnosis of cancer?

2 doctor answers2 doctors weighed in
Dr. Sameer Gupta
Medical Oncology 18 years experience
Indirect evidence: More data is availiable for benefit of exercise in cancer survivors (esp breast and colon).
Dr. Ed Friedlander
Pathology 44 years experience
No good studies: The difficulty in evaluating the impact of exercise on disease incidence and outcome is that people who exercise also tend to have other habits, especially not smoking and being healthier to begin with. The cardiovascular benefits seem clear, but exercise would seem unlikely to keep cells from mutating and i retain a pathologist's scepticism about improved immunity protecting from most cancers.
Dr. Ed Friedlander
Pathology 44 years experience
Provided original answer
I hope this is not a disappointment. Nobody here at HealthTap will encourage you more strongly to engage in fitness activities that you enjoy -- the other benefits are obvious, both to health and to subjective well-being. Keep up cancer surveillance and exercise and your chances of staying fit into a healthy old age are high.
Oct 12, 2013

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Last updated Oct 12, 2013
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