神经信号快到令人震惊

发布于 2026-05-24 · 时长 16:06

字幕摘录

时间	英文	中文
0:00	Imagine touching a hot stove and pulling your hand back instantly.	想象一下,摸一下热炉子然后立刻把你的手拉回来
0:05	You didn't think.	你没想过
0:06	You didn't decide.	你没有决定
0:08	Your body reacted.	你的身体有反应
0:10	That reaction happened faster than	反应发生得比
0:12	conscious thought.	意识思惟.
0:14	And that speed belongs to one system only, the nervous system.	而速度只属于一个系统,即神经系统。
0:20	Now imagine another moment.	现在再想想
0:22	You hear your name in a noisy room.	你听到你的名字在一个吵闹的房间。
0:25	Your heart beats faster when	当心跳加快时

展开字幕全文（217 条）

序号	英文	中文
1	Imagine touching a hot stove and pulling your hand back instantly.	想象一下,摸一下热炉子然后立刻把你的手拉回来
2	You didn't think.	你没想过
3	You didn't decide.	你没有决定
4	Your body reacted.	你的身体有反应
5	That reaction happened faster than	反应发生得比
6	conscious thought.	意识思惟.
7	And that speed belongs to one system only, the nervous system.	而速度只属于一个系统,即神经系统。
8	Now imagine another moment.	现在再想想
9	You hear your name in a noisy room.	你听到你的名字在一个吵闹的房间。
10	Your heart beats faster when	当心跳加快时
11	you're scared.	你吓坏了。
12	Or you suddenly remember a childhood memory triggered by a smell.	或者你突然想起一个童年的记忆由一股气味引发
13	These are not coincidences.	这不是巧合。
14	These are signals, rapid, precise, and perfectly timed.	这些都是信号,快速,精确, 和完美的时间。
15	Welcome to Vital Codes, where we decode how the human body truly works.	欢迎来到生命密码我们解码人体的真正作用
16	Today's episode is all about the nervous system, the brain, the nerves, and the powerful	今天的剧集都是关于神经系统,大脑,神经,以及强大的
17	communication network that controls everything you do.	控制你一切的通讯网络
18	From breathing and heartbeat to emotions,	从呼吸和心跳到情感
19	memory, movement, decision-making, and even dreams, the nervous system is the command	记忆运动决策甚至梦想神经系统是命令
20	center of life itself.	生命的中心本身。
21	It works every second, even when you are asleep.	每时每刻,即使你睡着了。
22	In this video, we'll break it down step by step in clear chapters, so by the end,	在这段视频中,我们将一步一步地分解它清晰的章节,所以最后,
23	you'll fully understand how the nervous system is structured, how the brain processes information,	你会完全了解神经系统的结构大脑如何处理信息
24	how nerves transmit messages, and how communication inside your body actually happens.	神经如何传递信息以及身体内部的交流是如何发生的
25	Chapter one.	第一章. 结论
26	What is the nervous system?	神经系统是什么?
27	The nervous system is the control and communication	神经系统是控制与交流
28	system of the human body.	人体系统。
29	Its main job is simple in words, but extraordinary in function.	其主要工作是言语简单,但功能非凡.
30	Receive information from the body and environment.	从身体和环境接收信息。
31	Interpret and analyze that information.	解释和分析这些信息。
32	Send precise instructions in response.	发出准确的指示
33	Every time you move a muscle, feel pain,	每次你移动肌肉,感觉疼痛,
34	experience fear, or recall a memory, the nervous system is at work.	体验恐惧,或回忆记忆, 神经系统在工作。
35	It constantly monitors both	它经常监视两个
36	external world, light, sound, temperature, touch, and the internal environment, blood pressure,	外部世界,光,声音,温度,触摸, 和内部环境,血压,
37	oxygen levels, body position.	氧气水平,身体位置。
38	What makes the nervous system unique is speed.	神经系统的独特性在于速度
39	Unlike hormones	与荷尔蒙不同
40	that may take seconds or minutes, nervous signals act in milliseconds.	这可能需要数秒或数分钟, 神经信号作用在毫秒。
41	Some signals travel at speeds	一些信号以速度传送
42	up to 120 meters per second.	最高120米每秒。
43	Without the nervous system, muscles would not contract,	没有神经系统,肌肉不会收缩,
44	organs would not coordinate, thoughts and emotions would not exist.	机关不会协调,思想和情感就不会存在。
45	In short,	总之
46	life would be biologically impossible.	生命在生物学上是不可能的
47	第二章. Chapter.
48	Major divisions of the nervous system.	神经系统的主要分裂.
49	The nervous system is divided into two main parts.	神经系统主要分为两部分.
50	One, central nervous system, CNS.	一,中枢神经系统,CNS.
51	This is the	这是
52	control center.	控制中心。
53	It includes the brain, the spinal cord.	它包括大脑,脊髓.
54	The CNS processes information and makes	CNS处理信息并制作
55	decisions.	决定。
56	Two, peripheral nervous system, PNS.	二,外围神经系统 PNS.
57	This is the communication network.	这是通讯网。
58	It includes	它包括
59	all nerves outside the brain and spinal cord.	脑外的所有神经和脊髓
60	The PNS connects the CNS to the rest of the body,	PNS连接CNS与身体其余部分,
61	muscles, skin, and organs.	肌肉、皮肤和器官
62	Together, the CNS and PNS form a complete loop of communication.	CNS和PNS共同构成了一个完整的通信循环.
63	第三章. Chapter.
64	The brain, the command center.	脑,指挥中心.
65	The brain is the most complex organ in the human body.	大脑是人体中最复杂的器官.
66	It weighs about 1.3 to 1.4 kilograms, yet it controls trillions of processes every single	它的重量约为1.3至1.4公斤,然而它却控制着每个个体数万亿个过程.
67	second.	再来
68	It consumes nearly 20% of the body's total oxygen and energy, even though it makes up only	它消耗了身体总量的近20%的氧气和能量,尽管它只是构成
69	about 2% of body weight.	大约2%的体重。
70	This alone shows how active and demanding the brain truly is.	这本身就表明大脑是多么的活跃和要求。
71	The brain acts as a decision maker, a data processor, a memory storage system,	大脑充当决策者,数据处理器,内存存储系统,
72	an emotional regulator.	一个情绪调节器。
73	It is divided into three major parts, each with a distinct role.	它分为三个主要部分,每个部分具有独特的作用。
74	One, cerebrum, the thinking brain.	一,脑,思维脑.
75	The cerebrum is the largest and most advanced part of the brain.	脑部是大脑中最大和最先进的部分.
76	Its functions include conscious thought and reasoning, memory formation and recall,	它的功能包括有意识的思想和推理,记忆的形成和召回,
77	language and speech, voluntary muscle movement, emotions, behavior, and personality.	语言和言语,自愿的肌肉运动,情感,行为,和个性.
78	The cerebrum is divided into two hemispheres, left hemisphere, logic, language, analytical thinking,	大脑分为两个半球,左半球,逻辑,语言,分析思维,
79	right hemisphere, creativity, imagination, spatial awareness.	右半球创造力想象力空间意识
80	Each hemisphere controls the	每个半球控制着
81	opposite side of the body.	身体对面
82	The outer layer, called the cerebral cortex, is deeply folded.	外层称为大脑皮层,是深层折叠.
83	These folds increase surface area, allowing more neurons and higher intelligence.	这些折叠增加了表面积,使得神经元增加,智能提高.
84	Two, cerebellum, the balance controller.	二,脑,平衡控制器.
85	Located at the back of the brain,	位于脑后,
86	the cerebellum controls balance, posture, coordination, smooth muscle movement.	大脑控制平衡姿势协调平滑的肌肉运动
87	Without	无
88	it, simple actions like walking or picking up a glass would be clumsy and uncoordinated.	它,简单的动作,比如走路或拿起玻璃会笨拙和不协调。
89	Three, brainstem, the survival center.	三,脑电图,生存中心。
90	The brainstem connects the brain to the spinal cord.	脑电图将大脑与脊髓相连.
91	It controls automatic functions such as breathing, heart rate, blood pressure, swallowing,	它控制自动功能比如呼吸,心率,血压,吞咽,
92	sleep cycles.	睡眠循环。
93	Damage to the brainstem can be life-threatening because it controls basic	对脑电图的伤害可能危及生命,因为它控制着基本
94	survival.	活下来
95	Chapter four, the spinal cord, the information highway.	第四章脊髓信息高速公路.
96	The spinal cord is a long	脊髓很长
97	cylindrical bundle of nerve tissue running inside the spine.	脊椎内有神经组织
98	Its main functions are carrying messages	其主要职能是传递信息
99	between the brain and the body, controlling reflex actions, reflexes.	在大脑和身体之间控制反射动作反射
100	Reflex actions are quick,	反射动作很快
101	automatic responses.	自动响应。
102	Example, when you touch something hot, the signal travels to the spinal	举例来说,当你碰到热的东西, 信号会传到脊柱
103	cord, not the brain, then instantly sends a command to pull your hand away.	绳子,而不是大脑, 然后立刻发出命令将你的手拉开。
104	This protects	这个保护
105	the body from injury.	身体受伤。
106	Chapter five, neurons, the messengers.	第五章神经元信使
107	The nervous system works because of	神经系统起作用是因为
108	cells called neurons.	细胞称为神经元.
109	There are billions of neurons in the body.	体内有数十亿神经元.
110	Each neuron has three main parts.	每个神经元有三个主要部分.
111	One, dendrites receive incoming signals.	一,登场者接收来袭信号.
112	Two, cell body processes the information.	二,细胞体处理信息.
113	Three, axon transmits signals to other neurons, muscles, or glands.	三,轴向其他神经元,肌肉,或腺体传递信号.
114	Signals travel in the form of electrical impulses.	信号以电冲动的形式行走.
115	Chapter six, types of neurons.	第六章神经元的类型.
116	There are three main types.	主要有三种类型.
117	One, sensory neurons, carry information from receptors to the CNS.	一,感官神经元,携带从受体到CNS的信息.
118	Example, pain, temperature, touch.	例子疼痛温度触摸
119	Two, motor neurons, carry commands from the CNS to muscles	二,运动神经元,从CNS携带命令到肌肉
120	and glands.	还有腺体
121	Example, moving your arm.	举个例子,移动你的手臂。
122	Three, interneurons, found only in the CNS.	三,中微子,只在CNS中发现.
123	They connect sensory and motor neurons and handle decision making.	它们连接感官神经元和运动神经元,并处理决策.
124	Chapter seven, synapses,	第七章突触
125	how neurons communicate.	神经元是如何沟通的
126	Neurons do not directly touch each other.	神经元不会直接接触对方.
127	Instead, they communicate	相反,他们沟通
128	across microscopic gaps called synapses.	跨越被称为突触的微观差距。
129	A single neuron can form thousands of synaptic	单神经元可以形成数千个突触
130	connections, creating a vast communication network inside the brain.	连接,在大脑内部建立一个庞大的通信网络.
131	Here's how synaptic	这是如何突触
132	communication happens.	通讯时有发生。
133	One, an electrical impulse reaches the end of a neuron.	一,电冲动到达神经元末端.
134	Two, this triggers	二,这个触发器
135	the release of chemical messengers called neurotransmitters.	释放化学信使被称为神经递质。
136	Three, neurotransmitters	三,神经递质
137	cross the synaptic gap.	跨越突触间隙。
138	Four, they bind to specific receptors on the next neuron.	四,它们与下一个神经元上的特定受体结合.
139	Five, a new electrical signal is generated.	五,生成新的电讯信号.
140	This process happens in milliseconds but allows	此过程以毫秒发生, 但允许
141	incredible precision.	难以置信的精度。
142	Learning, memory, and habits are formed by strengthening	学习、记忆和习惯通过加强形成
143	synaptic connections.	突触连接.
144	The more a pathway is used, the stronger it becomes.	越是使用一条路径,它就越强大。
145	This is the biological basis of learning.	这是学习的生物基础.
146	Chapter eight, neurotransmitters, chemical messengers.	第八章神经递质化学信使.
147	Neurotransmitters are chemical messengers that allow neurons to communicate with each	神经递质是化学信使,允许神经元与每个神经元通信
148	other across synapses.	其他跨越突触。
149	While electrical signals travel within a neuron, neurotransmitters carry	当电讯在神经元内行走时,神经递质会携带
150	the message between neurons.	神经元之间的信息。
151	Each neurotransmitter has a specific role, and the balance between them	每个神经递质都有特定的作用,它们之间的平衡
152	is critical for normal brain and body function.	对正常的大脑和身体功能至关重要
153	Let's understand some key neurotransmitters	让我们了解一些关键的神经递质
154	in simple terms.	简而言之。
155	Dopamine, motivation, and reward.	多巴胺动机和奖励
156	Dopamine is often called	多巴胺常被称为
157	the reward chemical.	奖励化学。
158	It plays a major role in motivation and drive, pleasure and reward,	它在激励和驱动、快乐和奖励方面起着重要作用,
159	focus and attention, movement control.	重点和注意力,调度。
160	Low dopamine levels are linked with conditions like	低度多巴胺水平与下列条件有关:
161	Parkinson's disease, while excessive dopamine activity is associated with addiction.	帕金森的疾病,而过多的多巴胺活性与成瘾有关.
162	Serotonin helps regulate mood and emotional balance, sleep cycles, appetite, overall sense	血清素有助于调节情绪和情绪平衡睡眠周期食欲整体感知
163	of well-being.	幸福的快乐。
164	Low serotonin levels are commonly linked to depression and anxiety.	低血清素水平通常与抑郁症和焦虑有关.
165	Acetylcholine is essential for muscle contraction, learning and memory.	乙酰胆碱对肌肉收缩,学习和记忆至关重要.
166	When a motor neuron releases	当运动神经元释放时
167	acetylcholine, it causes a muscle to contract.	乙酰胆碱会导致肌肉收缩.
168	In Alzheimer's disease, acetylcholine levels are	在阿尔茨海默氏病中,乙酰胆碱水平
169	significantly reduced.	大幅减少。
170	GABA, the calming signal.	GABA,平静的信号。
171	GABA is the main inhibitory neurotransmitter.	GABA是主要的抑制神经递质.
172	It slows down nerve activity and prevents overstimulation.	它会减缓神经活动,防止过度刺激.
173	It helps with relaxation,	它有助于放松,
174	anxiety control, sleep regulation, glutamate, learning and memory.	焦虑控制睡眠调节呕吐学习和记忆
175	Glutamate is the main	胶原是主
176	excitatory neurotransmitter.	兴奋神经递质.
177	It is crucial for learning, memory formation, brain development.	它对于学习,记忆形成,大脑发展至关重要.
178	Too much glutamate, however, can damage neurons, showing how balance is essential.	然而,过多的过量物质会损害神经元,表明平衡是多么重要。
179	The peripheral nervous system, PNS, includes all nerves outside the brain and spinal cord.	外围神经系统PNS包括脑外的所有神经和脊髓.
180	Its primary role is to act as a bridge between the central nervous system and the rest of the	其主要作用是充当中枢神经系统与其余神经系统之间的桥梁。
181	The PNS ensures that information reaches the brain and that commands from the brain	PNS确保信息到达大脑,并从大脑中命令
182	reach muscles and organs.	到达肌肉和器官。
183	It is divided into two main parts.	它分为两个主要部分。
184	The somatic nervous system controls voluntary actions, things you consciously decide to do.	身体神经系统控制着自愿行动, 你自觉决定做的事情。
185	Examples include walking, writing, speaking, lifting objects.	例子包括步行,写作,说话,举起物体.
186	It also carries sensory information like pain, temperature and touch to the CNS.	它还将疼痛,温度和触觉等感官信息携带到CNS.
187	The autonomic nervous system controls involuntary actions,	自动神经系统控制着非自愿的动作,
188	processes that happen automatically without conscious effort.	自动进行的过程,没有意识的努力。
189	Examples include heartbeat, digestion, breathing rate, blood vessel diameter.	例子包括心跳,消化,呼吸速率,血管直径.
190	The autonomic nervous system maintains internal balance, also known as homeostasis.	自动神经系统维持内部平衡,又称顺势神经.
191	It works continuously, adjusting body functions based on internal and external conditions.	它持续工作,根据内外条件调整机体功能.
192	It has two opposing but complementary branches.	它有两个对立但相互补充的分支.
193	This system prepares the body for stress or danger.	该系统使身体能够承受压力或危险。
194	When activated, heart rate increases,	当启动时,心率会上升
195	breathing becomes faster, pupils dilate, blood is redirected to muscles,	呼吸变快瞳孔扩张血液被转移到肌肉上
196	adrenaline is released.	肾上腺素释放.
197	This allows the body to react quickly in emergencies.	这使得身体能够在紧急情况下迅速作出反应.
198	This system promotes relaxation and recovery.	这一制度促进放松和恢复。
199	When active, heart rate slows down,	活动时心跳减慢
200	digestion increases, energy is conserved, the body repairs itself.	消化能力增强,能量节约,身体修复本身.
201	A healthy nervous system	健康的神经系统
202	maintains a balance between these two states.	保持这两个州的平衡。
203	The nervous system is more than just the brain	神经系统不只是大脑
204	and nerves.	和神经。
205	It is a living communication network, a biological code that allows the body to sense,	这是一个活的通信网络, 一个生物代码,允许身体感知,
206	think, feel, adapt and survive.	思考,感受,适应和生存。
207	Every heartbeat, every reflex,	每一个心跳,每一个反射,
208	every emotion and every memory depends on this system working in perfect coordination.	每一个情感和记忆都取决于这个系统在完美的协调中工作。
209	From the smallest neuron to the most complex thought, the nervous system connects your	从最小的神经元到最复杂的思维,神经系统连接你
210	physical body to your conscious experience.	身体对你的知觉体验。
211	If you understand the nervous system,	如果你理解神经系统
212	you understand the foundation of human life.	你了解人类生命的基础
213	This is Vital Codes, where biology meets clarity.	这是生命密码, 生物满足清晰。
214	If you found this video valuable, like it, share it, and subscribe for more deep dives	如果你发现这段视频很值钱,像它一样,分享它,并订阅更多的深度潜水
215	into the systems that keep you alive.	进入让你活着的系统
216	Stay curious.	继续好奇
217	See you in the next decode.	下一个解码时见

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