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Results of an excellent, long-term study show that men who are in the best shape are less likely to die from cancer, and women with greater body mass are at a considerably greater risk of a cancer fatality.
The study examined the relationship between fitness and obesity and the risk of dying from all types of cancer.
Fitness was determined by a treadmill test of heart condition given at the beginning of the 25-year study. Researchers also recorded the subjects' body mass index (BMI)--a measure used to gauge obesity.
Among men, the fittest proved to be about half as likely to die from cancer as the less fit men. Among women, fitness levels did not have a significant effect on cancer deaths; however, a woman's BMI at the start of the study did affect cancer fatality risk. Women with the ...