Women burn fat more slowly than men, by a rate of about 50 calories a day.

女人消耗脂肪的速度比男人慢，每天约为50卡路里。

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You will likely burn more calories, increase your metabolic rate and your level of fitness at a faster rate than with your old familiar workout.

这样你的身体就可以燃烧更多的热量，加快新陈代谢，同时增加人体对快节奏的适应能力。

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Your basal metabolic rate accounts for about 60 to 75 percent of the calories you burn every day.

每天消耗的卡路里中，基础代谢值大约占百分之六十到百分之七十五。

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Other foods have different ways of increasing the rate at which we burn calories (otherwise known as the metabolic rate).

BBC: Who, Why, What: Can foods have negative calories?