As people continue to grow and age, our
body systems continue to change. At a certain point in your life your body
systems will begin to weaken. Your joints may become stiff. It may become more
difficult for you to see and hear. The slow change of aging causes our bodies to
lose some of their ability to bounce back from disease and injury. In order to
live longer, we have always tried to slow or stop this process that leads us
toward the end of our lives. Many factors contribute to your health. A well-balanced diet plays an important role. The amount and type of exercise you get is another factor. Your living environment and the amount of stress you are under is yet another. But scientists studying senescence (衰老) want to know: Why do people grow old They hope that by examining the aging process on a cellular level medical science may be able to extend t A. The right food you eat. B. Lots of exercise you get. C. Your living conditions. D. The amount of stress you are under. 更多"As people continue to grow and age,"的相关试题: [单项选择]
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