Doctors have long said that cancer patients who are able to exercise throughout their treatment fare much better than those who remain sedentary. Two new studies further emphasize the importance of daily movement, finding that exercise reduces women’s risk of developing lung and breast cancer significantly. In fact, both studies concluded that the cancer-fighting benefits of exercise are essentially boundless: the more movement, the lower the risk. What’s confusing, though, is that many of us have friends and relatives fighting cancer who were active before diagnosis, remain that way through treatment, and still end up with severe illness. What’s been your experience of the connection between fitness and cancer? Do you find studies such as these encouraging, or infuriating? Sound off in the comments.