两种脂肪都不是好事,内脏脂肪堆积往往带来一些严重的健康问题。美国卫生与公众服务部指出,如果男性腰围超过40英尺,女性腰围超过35英尺(世卫组织建议亚洲人的门槛降低至男性35英尺,女性31英尺),身体健康就有风险。虽然我们不完全明白个中缘由,但是腹部脂肪会关系到胰岛素抵抗(insulin resistance)的增加,这可能导致II型糖尿病,也可能导致心脏疾病,中风,某些癌症,睡眠呼吸暂停症,以及过早的骨密度流失。甚至还有证据显示,它可能是痴呆症的一个成因。
So what causes belly fat? Heredity is one factor. Belly fat has often been called "middle-aged spread" because as you age and your metabolism slows down, extra pounds tend to accumulate across the stomach. This is probably due to changes in levels of hormones such as cortisol, which is made in the adrenal glands and helps the body process glucose, regulate metabolism and manage stress. Speaking of stress, it can raise levels of cortisol, so it might lead to increased belly fat, too.
那腹部肥肉从何而来?遗传是一个因素。肚腩经常被称作“中年膘”,因为当你岁数上来了,新城代谢减缓,多余的肥肉就开始往肚子周围累积,这很可能是因为激素水平发生了变化,比如皮质醇的变化,它产生于肾上腺,帮助身体加工葡萄糖,调节新陈代谢和应对压力。提到压力,不得不说它会升高皮质醇水平,从而可能导致腹部脂肪的增加。
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2020-09-15
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