Have you ever wondered why some days all you want to do is snack?
不知道你有没有想过这个问题:为什么有时候你会不停地想吃东西?
Under normal circumstances, we feel hungry when we have burnt up the food we have eaten as energy and our blood sugar and insulin levels begin to drop. Ghrelin, a hormone connected to appetite, then communicates this to the brain, which is how we feel the need to eat.
在正常情况下,当身体把食物转为能量消耗掉之后,我们的血糖和胰岛素水平也开始降低,这时我们就会感到饥饿。然后,饥饿激素将这个信息传达给大脑。这样我们就会感觉到需要吃东西了。
insulin:胰岛素
Ghrelin:/ˈɡrɛlɪn/食欲刺激素
But all sorts of things can interfere with this process.
但是各种各样的事情都会干扰这个过程。
1 When you are tired
According to a 2011 study by researchers at Columbia University in the US, those who are sleep-deprived eat almost 300 calories a day more than those who get enough sleep.
根据美国哥伦比亚大学2011年研究人员的一项研究,那些睡眠不足的人每天摄入的热量几乎比那些睡眠充足的人多300卡路里。
This is because levels of the hormone ghrelin, which tells the brain we need to eat, increase when we don't get enough sleep.
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