Doing a lot of physical activities and having a healthy diet will help have normal body weight.

进行大量的体育锻炼并保持健康的饮食习惯有助于拥有正常体重。

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Healthy diet, regular physical activity, maintaining a normal body weight and avoiding tobacco use can prevent or delay the onset of type 2 diabetes.

健康饮食、经常锻炼身体、保持正常体重和避免使用烟草，可预防或推迟二型糖尿病发病。

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These measures should be supported by a healthy diet, regular physical activity, maintaining a normal body weight and avoiding tobacco use.

这些措施应当辅之以健康饮食，定期进行身体活动，保持正常体重并避免使用烟草。

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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

Scientists have estimated that in the European Union, 21, 000 cases of colon cancer and 13, 000 cases of breast cancer could be avoided annually by people maintaining a normal body weight.

BBC: Breast cancer risk for large mums

He believes the best way for women in this age-group to keep their bones strong is to keep their body weight within normal levels and make sure they are exercising regularly.

CNN: Want strong bones? Start early

The study, by a joint team from the US National Jewish Medical and Research Center and University of Colorado, classed normal weight as someone with a body mass index below 25, overweight over 25 but below 30, and obese as 30 and above.

BBC: NEWS | Health | Overweight 'higher asthma risk'