脂肪不能过少，少量的健康脂肪，如橄榄油、牛油果、和坚果会改善胆固醇程度，并有其它的好处。

Don't get too skimpy with fat. Small amounts of healthful fats like olive oil, avocado, and nuts improve cholesterol levels and have other benefits, too.

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头发的自然光泽来自它自身的护发素：油脂，它含有蜡和脂肪，还含有抗感染的自然抗菌剂。油脂含量过多会导致油性发质，相反，油脂含量过少则会导致干性发质。

Hair's natural shine is supplied by its own conditioner, sebum, an oil composed of waxes and fats and also containing a natural antiseptic that helps fight infection.

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该研究结果刊载于医学杂志《睡眠》中。研究并没有证明睡眠过少或过多会直接导致过量脂肪增加。

The study, reported in the journal sleep, does not prove that too little or too much sleep directly leads to excess fat gain.

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该研究结果刊载于医学杂志《睡眠》中。研究并没有证明睡眠过少或过多会直接导致过量脂肪增加。

The study, reported in the journal sleep, does not prove that too little or too much sleep directly leads to excess fat gain.

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