Exercise called "wonder drug" for cancer patients:What can it do?

The latest "wonder drug" for cancer isn't a drug at all - but exercise. That's what a British cancer charity had to say in a new report detailing the benefits of exercise for cancer patients.

"Cancer patients would be shocked if they knew just how much of a benefit physical activity could have on their recovery and long term health," Ciaran Devane, chief executive of Macmillan Cancer Support....

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