（2016高考训练）阅读下列材料，从每题所给的选项中选出最佳选项。
Life is to be enjoyed.There's no point in giving up something you enjoy unless you get something back that's even better.When people eat more healthfully, exercise, quit smoking, and manage stress better, they find that they feel so much better that it reconstructs the reason for making these changes from fear of dying to joy of living.The latest studies show that when you exercise and eat right：
