But when researchers severed the vagus nerve, all of these improvements disappeared.

但当研究人员切断迷走神经时，所有这些改进之处都消失了。

It's hard to trace the vagus nerve's thin, twisting branches through the body.

很难在全身追踪迷走神经细而扭曲的分支。

After severing the vagus nerve along this track, the rats could no longer form some kinds of memories.

沿这条轨道切断迷走神经后，老鼠无法再形成某些记忆。

With these new maps, researchers are exploring treatments involving the vagus nerve for many conditions, from inflammatory diseases such as Crohn's and rheumatoid arthritis, to Alzheimer's and heart failure.

有了这些新地图， 研究人员正在探索涉及迷走神经的许多疾病的治疗方法，从克罗恩病和类风湿性关节炎等炎症性疾病到阿尔茨海默氏症和心力衰竭。

In addition to the bloodstream, one of the main pathways between the two is the vagus nerve – a long bundle of nerve fibres that stretch from the brain to the abdomen.

除了血流之外， 两者之间的主要通路之一是迷走神经——一束长长的神经纤维， 从大脑延伸到​​腹部。

The substances that the various bacteria, viruses and fungi produce may go directly into the bloodstream and infiltrate blood vessels, or they may stimulate the vagus nerve that connects the gut and the brain.

各种细菌、病毒和真菌产生的物质可能直接进入血液并渗透血管，也可能刺激连接肠道和大脑的迷走神经。