they'll be more aggressive, and they'll start having body tremors.

变得更有攻击性身体开始发颤
We also see neurobiological changes:

我们也观察到神经生物学方面的改变
we see changes of the brain adapting by this flood of pleasure

大脑通过减少多巴胺神经递质的分泌
in the dopamine pathway

来适应多巴胺通路中
by really shutting down some dopamine neurotransmitters;

从而使大脑感受到的愉悦程度发生改变
and sensitization in the opiate system of the brain,

并且大脑成瘾系统变得更加敏感
which gives you kind of a big up

使其对摄入的引起愉悦的物质
for a pleasurable thing consumed.

产生很大的反应
It's where morphine and things really get their effects.

这就是吗啡一类的东西产生效果的过程
Finally, we see behavioral changes.

最后我们观察到行为变化
I think some of the most interesting research out there

在关于对糖上瘾的大鼠的研究中
when looking at these rats that have become addicted to sugar,

最有趣的是