America is a country on the move. In unheard-of numbers, people of all ages are exercising their way to better health. According to the latest statistics, 59 percent of American adults exercise regularly—up 12 percent from just two years ago and more than double the number of 25 years ago. Even non-exercisers believe they would be more attractive and confident if they were more active.
It is hard not to get the message. The virtues of physical fitness are shown on magazine covers, postage stamps, and television ads for everything from beauty soaps to travel books. Exercise as a part of daily life did not catch on until the late 1960s when research by military doctors began to show the health benefits of doing regular physical exercises. Growing publicity for races held in American cities helped fuel a strong interest in the ancient sport of running. Although Americans have also discovered other forms of exercise, running _________.
As the popularity of exercise continues to increase, so does scientific proof of its health benefits. The key to fitness is exercising the major muscle group vigorously enough to approximately double the heart rate and keep it doubled for 20 to 30 minutes at a time. Doing such physical exercises three times or more a week will pro-duce considerable improvements in physical health in about three months.
What is the best title for the passage? (Please answer within 10words.)
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Which sentence in the passage can be replaced by the following
one?
There are a lot of people of all ages who seek for better health through exercise.
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Please fill in the blank in the second paragraph with proper words or phrases to complete the sentence. (Please answer with-in 10 words.)
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What is the author's purpose of writing the last paragraph?(Please answer within 10 words. )
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Translate the underlined sentence in the last paragraph into Chinese.
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