A new study, published in the Journal of Clinical Oncology, found that if a woman, who has survived breast cancer, eats at least five servings of vegetables and fruits a day and walks briskly for 30 minutes, six days a week, her risk of death from breast cancer, goes down by 50 percent. Those who were both physically active and had a healthy diet were much more likely to survive through the follow-up period than the rest of the study group. Moral of the story? Both exercise and eating healthfully are key components to living longer, period. So if you don't do both, then you probably should start.