The Best Medicine
A new study hopes to prove the benefits of physical activity. Doctors have long known that(31)and exercise are the best ways to stay healthy. But(32),few people get enough exercise.
Health(33)want people to know about the benefits of exercise. They believe it can lead to slower aging, and better(34)4. This year, the US National Institutes of Health is starting a(n)(35)study. It hopes to prove(36)that exercise is good medicine.
The project will run for six years. It will(37)a group of about 3,000 people. The group will(38)an exercise program. Their blood, fat, and muscle will be studied before and after each workout (锻炼). Studies show that many(39)9changes happen in the body during and after a workout. The good (40) is that much of what we often do counts as physical activity.
A. mood
B. positive
C. unfortunately
D. experts
E. involve
F. fluent
G. major
H. begin
I.scientifically
J. news
K. solve
L. diet