Some of this can be explained by the hormone Ghrelin.

这种现象某种程度上可以用胃饥饿素来解释。

No, you can lay some of the blame on ghrelin.

并不是，你可以将部分责任归咎于胃饥饿素。

Their ghrelin levels were checked every 20 minutes.

每20分钟会检查他们的胃饥饿素水平。

Another one is called ghrelin that's released by the stomach.

另一种叫做饥饿素，由胃释放。

Ghrelin, known as the “hunger hormone” has been found to increase appetite and weight gain.

胃饥饿素是一种“饥饿感激素”，被人们发现可以促进食欲和增加进食量。

However, that ghrelin rise spontaneously decreases after 2 hours without food.

然而，胃饥饿素的增长会在不进食两小时后自发减少。

At the same time, some of the subjects received ghrelin; others got only saline.

同时，部分参与者会注入胃饥饿素，其他人则只注射生理盐水。

The change in ghrelin may be especially important since the hormone can also reduce metabolism.

胃饥饿素的变化可能特别重要，因为这种激素也会降低新陈代谢。

Your stomach tells your brain it's not getting filled by increasing levels of the hormone ghrelin.

胃通过提高饥饿素的指标，告知大脑它尚未充满。

But that change in the amount of ghrelin depends on what you've eaten.

但是饥饿荷尔蒙含量的变化取决于你吃了什么。

Some suggest exercise-induced alterations to appetite-regulating hormones like acylated ghrelin and GLP-1 that can influence hunger ratings.

一些人认为是运动引起的食欲调节激素改变，如酰化饥饿素和 GLP-1，会影响饥饿等级。

Complex carbs and proteins cause a significant drop, but sugar barely changes your ghrelin level at all.

复杂的碳水化合物和蛋白质会导致其显著下降，但是糖几乎不会改变饥饿荷尔蒙的水平。

People's subjective experience of hunger and levels of the hunger hormone ghrelin were lower on a ketogenic diet.

采用生酮饮食的人对饥饿的主观体验和饥饿激素胃饥饿素的水平较低。

For example, various hormones like ghrelin, leptin, and insulin affect your hunger and you satisfy the hunger with food.

比如说，各种激素，像生长激素释放肤瘦素、胰岛素等会影响你的饥饿感，你会用食物来满足这种饥饿。

They looked at the ghrelin levels of 33 subjects who fasted for 84 hours.

他们观察了 33 名断食 84 小时的实验对象的胃饥饿素。

Because a new study shows that ghrelin, the hormone that makes you hungry, also makes food...and food smells...irresistibly appealing.

因为一项新研究表明，让你感到饥饿的激素胃饥饿素还可以令食物及食物气味产生无法抗拒的吸引力。

Their ghrelin followed similar rhythms each day but it actually decreased the longer they fasted.

他们的胃饥饿素每天都保持相似的节奏，但实际上，他们断食时间越长，胃饥饿素水平越少。

" We know from previous research that sleep deprivation causes leptin to drop and ghrelin to rise, so you're hungry."

从先前的研究得知，缺觉会导致瘦素水平下降，饥饿激素水平上升，所以会感到饥饿。”

Ghrelin, on the other hand, does the opposite.

另一方面， 生长素释放肽的作用恰恰相反。

Then, as you eat, the amount of ghrelin in your blood goes down, and you start to feel less hungry.

进食时，血液中的饥饿荷尔蒙含量下降，你开始感觉不那么饿了。