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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Many girls have normal body weight, but they see themselves as being fat.

许多女孩体重正常，但是她们认为自己很胖。

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Belly size appeared make a difference even in patients with normal body weight.

甚至在正常身材的病人当中，腹部的大小也有所不同。

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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'