Longevity science

The long-lasting tiredness of cancer patients has been blamed both on the cancer itself, including cancer-related pain, and on the effects of treatments such as chemotherapy. Prior studies point to talk therapy, nutrition counseling and acupuncture as possible remedies.

But light-to-moderate exercise has the advantage of being something people can do on their own time, for little or no cost, said the researchers, whose findings appeared in The Cochrane Library.