Anorexia nervosa is an eating disorder characterized by refusal to maintain body weight that is within the minimal range of normal.

神经性厌食症属于进食障碍病，特点是拒绝体胖，尽管它已经是最低限度的正常体重。

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Therefore, it's best to maintain a normal, healthy body weight throughout life.

因此，最好终生保持正常、健康的体重。

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In brief, you should maintain a normal body weight, be careful with your diet, particularly animal fat, and walk everyday. That's the best prevention pill.

总之，保持正常体重，控制饮食，尤其是动物脂肪，每天行走锻炼，这才是最好的预防药物。

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While there is advice aplenty on how to lose pounds or kilograms, a new study focuses on middle aged and older women who maintain normal body weight, or BMI (Body Mass Index) and do not diet.

VOA: standard.2010.03.30