【题目】disease    substance    classification    prevent   figure

In a small-town farm market, hundreds of elderly people drink a glass of sour dark cherry juice every day. These happy senior citizens, some of them over the age of 90, claim that the natural  fruit juice cures—or at least decreases—the pain of their arthritis, a 6   1     of the joints of the aging body. It’s a folk remedy, not a proven medical therapy. Nevertheless, science is beginning to 7   2     out why sour cherry juice might work to improve the health of patients with arthritis. The secret is in the  8   3      that gives the cherries their dark red color. It belongs to a  9   4    of natural nutrients that color blueberries, strawberries, plums, and other fruits—and vegetables too. Moreover, these coloring substances may help to  10   5     serious health disorders like heart disease and cancer. In other words, vitamins and fiber are not the only reasons to eat fruits and vegetables. “To take advantage of natural whole foods,” advise nutritionists.