任务型阅读 Below is some advice on how to prevent cancer: Eat blueberries Aside from being a healthy and delicious snack, the blueberries contains pterostilbene, which has important colon(结肠) cancer-fighting. . Blueberries also offer a large dose of vitamins C. So at breakfast, try to take in a cup and a half of blueberries in your cereal or yogurt, or mixed with other berries. Relax ? Find ways to relax and you may reduce your chances of developing cancer. Purdue University researchers tracked 1,600 men over 12 years and found that half of those with high levels of worry died during