These were creatures with limbs, gills, nervous systems, probing antennae, a brain of sorts, in Fortey's words, and the strangest eyes ever seen.

这仍可能是一件令人惊喜的事，它们是有肢、有鳃、有经系统、有触角、“有某种大脑”（用福泰的话来说）、有最古怪眼睛的动物。

STEP 2 Stretch to stimulate the nervous system and fight stress hormones. The resultant tightening of muscles will increase blood circulation compromised by high tension and inactivity. Merely moving has been shown to alter the brain's stress hormones.

做伸展运动，经系统，抵抗压力荷尔蒙。由此引发的肌肉紧张可以曾加受到紧张情绪和缺乏运动损害的血液循环。仅仅运动就可以改变大脑的压力荷尔蒙水平。

Number 3, forgetting something, you make your nervous system flexible.

第 3 条，忘记一些事情，你会让你的经系统变得灵活。

Poliovirus invades the central nervous system and can cause total paralysis in hours.

脊髓灰质炎病毒入侵人体的中枢经系统，有可能在几小时就导致瘫痪。

They have a nervous system but no brain.

他们有经系统，但没有大脑。

Caffeine helps to give a jump start to the nervous system.

咖啡因能使经系统强力启动。

The nervous system includes the brain, spinal cord, and nerves.

经系统包括大脑、脊髓和经。

A rabies death is a painful process. After a rabid dog bites someone, the virus invades the person's central nervous system.

死于狂犬病是很痛苦的过程，在患上狂犬病的狗咬了人后，病毒会侵入人的中枢经系统。

They are also important to maintain the health of your nervous system.

它们对经系统的健康也很重要。

If left untreated, infection can spread to the joints, heart and even the nervous system causing serious long term health problems. According to the CDC, more than 300,000 Americans are diagnosed with Lyme disease each year.

如果不进行治疗，病毒会感染关节，心脏甚至经系统，从而导致长期健康问题。根据美国疾控中心的数据，美国每年有超过30万人被诊断患有莱姆病。

Instead, the nervous system prioritizes new sensations, for instance you feel gloves when you first put them on but eventually your body basically forgets they're there.

相反，经系统优先考虑新的感觉，例如，当你第一次戴上手套时，你会感觉到手套，但最终你的身体基本上忘记了手套的存在。

And it just tested an event for young adults who have multiple sclerosis, MS, a disease of the central nervous system that can cause paralysis or muscle tremors.

它对患有多发性硬化症的年轻人进行了测试，MS是中枢经系统的一种疾病，可引起瘫痪或肌肉震颤。

Neuroscience is the scientific study of the workings of the human brain and nervous system.

经科学指的是研究人类大脑和经系统的各种工作。

Among the thousands who participated now include people with multiple sclerosis, a disease of the central nervous system, and this year the group started offering free experiences for healthcare workers impacted by the COVID-19 pandemic.

在参与的数千人中，包括患有多发性硬化症（一种中枢经系统疾病）的人，今年，该组织开始为那些受新冠病毒影响的医护人员提供免费体验活动。

The brain performs a very important function. It controls the nervous system of the body.

大脑执行着一项非常重要的功能，它控制人体经系统。

Below 25 meters, inert gases like nitrogen can trigger a condition called inert gas narcosis, which alters your central nervous system, leading to faulty judgment and hallucinations similar to the effects of an anesthetic.

在25米以下，像氮气这样的惰性气体会引发一种叫做“惰性气体麻醉”的病症，这种病症会改变人的中枢经系统，会导致你出现错误的判断和幻觉，类似于麻醉剂的效果。

Early in its life, the sea squirt has a nervous system.

在其生命的初期，海鞘长有一个经系统。

Relaxing the nervous system may help calm the burning.

放松经系统可以帮助缓解这种灼烧感。

Pain and other messages travel through the nervous system as electrical impulses.

疼痛及其他讯息 以电子脉冲运行於经系统。

Taking a look at a cross section chunk, there's also a layer of smooth muscle which has nerves of the autonomic nervous system in it.

来看一下这个横断面，这一层还有平滑肌，里面含有属于自主经系统的经。