The concept of personal choice in relation to health behaviors is an important one. An est

imated 90 percent of all illness may be【B1】if individuals would make sound personal health choice【B2】upon current medical knowledge. We all enjoy our freedom of choice and do not like to see it【B3】when it is within the legal and moral boundaries of society. The structure of American society allows us to make almost all our personal decisions that may【B4】our health. If we【B5】desire, we can smoke, drink excessively, refuse to wear seat belts, eat【B6】foods we want, and live a【B7】sedentary(久坐的) life style. without any exercise. The freedom to make such personal decisions is the fundamental【B8】of our society,【B9】the wisdom of these decisions can be questioned. Personal choices relative to【B10】often cause a difficulty. As one example, a teenager may know the facts relative to smoking cigarettes and health but may be【B11】by friends into believing it is a socially【B12】thing to do.

A【B13】of factors, both inherited and environmental, influence the development of health-related behaviors, and it is【B14】the scope of this text to discuss all these factors as they may affect any【B15】individual. However, the decision to adopt a particular health-related behavior. is【B16】one of personal choices. There are healthy choices and there are unhealthy choices. Experts suggest that to knowingly give【B17】over to a behavior. that has a statistical probability of【B18】life is similar to attempting suicide.【B19】, personal health choices should【B20】those behaviors that are associated with a statistical probability of increased vitality and longevity.

【B1】

A．stopped

B．prevented

C．infected

D．cured