Rather than studying weight loss in overweight or obese individuals, scientists looked at how certain activities and diet affected weight gain over several years.

过去几年中科学家研究了某些活动和饮食对体重增加的影响，没有研究超重或肥胖者减肥的个案。

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The artist's diaries record an array of obsessions, including acne, baldness, weight loss, weight gain, aging, cancer, AIDS and brain tumors.

这位艺术家的日记里记录着一大堆令他无比困扰的事，其中包括粉刺、脱发、减重、长胖、衰老、癌症、艾滋病和脑瘤。

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[font=Times New Roman]Fowler and Christakis say that the contagion-effect should hold just as much for weight loss as it does for weight gain.

[font=Times New Roman]Fowler和Christakis认为这种“传染效应”在减肥上也一样。

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These include weight gain or loss, eye or stomach problems, sleepiness and loss of balance.

VOA: special.2010.10.26

So, some women can develop irregular cycles because of medical conditions such as thyroid abnormalities, but both weight loss and weight gain can play a role as can stress.

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Some popular diabetes drugs come with side effects including weight gain, bone loss and even a small risk of certain cancers.

WSJ: New Strategies for Treating Diabetes

As they age rapidly, these children suffer from a loss of body fat and hair and an inability to gain weight.

CNN: Advances in kids' early aging disease