because you're taking a lot of sugar in.

因为你们摄入了许多糖分
When it does your pancreas receives a signal

这时你的胰腺会收到信号
that your blood glucose has started to go up,

你的血糖水平开始升高了
and it will secrete insulin.

它就会分泌胰岛素
So, there are cells in your pancreas which

你的胰腺细胞能够
recognize glucose levels and they secrete insulin in response.

识别血糖水平并分泌胰岛素作为反馈
When they do that,

当胰岛素开始分泌后
this insulin then starts to circulate throughout the blood.

胰岛素就开始通过血液来循环
If you measured,

如果这时候检测
if somebody measured levels of insulin in your blood after lunch,

如果有人测量午饭后十分钟三十分钟
if they took it 10 minutes, 30 minutes, an hour,

及一个小时血液中的胰岛素水平
you would see that it's going slowly up.

就会发现它在缓慢地升高