Yesterday I mentioned two neurotransmitters. Introverts mainly use acetylcholine and extroverts use dopamine, which aroused my curiosity about the nervous system. As it happens, the book also lists various neurotransmitters for us. They and other chemicals flow in the brain, and each neurotransmitter has its own unique function, which makes people have different behaviors, thoughts and emotions. Neurotransmitters can excite or inhibit brain cells. Let's have a look.

1, acetylcholine-"Let me think"

Acetylcholine is the promoter of thinking, attention and voluntary movement, which controls important activities such as awakening, attention, consciousness, perceptual learning, sleep and awakening. The nervous system of introverts tends to slow people down, and its main neurotransmitter is acetylcholine. Lack of acetylcholine will disturb learning and cognitive function and cause memory loss. The premature degeneration of acetylcholine neurons is Alzheimer's disease.

2, dopamine-"fun will continue!"

This is a neurotransmitter that can make us feel very happy. It controls action, joy and mobility, and is essential for vigilance, especially for the excitement of new things. The nervous system of extroverts is easy to "accelerate", and dopamine is the main neurotransmitter of extroverts. Of all neurotransmitters, dopamine is also the most addictive.

3, endorphins and enkephalins-"I don't hurt anymore!"

This neurotransmitter acts as an analgesic. They can relieve pain and stress, and make people's body and mind in a relaxed and peaceful state. This stress-resistant neurotransmitter is also addictive. When you are in pain, relaxed, nervous or eat Chili, your brain releases this substance.

4. Serotonin-"Not too much, not too little!"

This neurotransmitter can trigger sleep and make the mood quiet and peaceful. However, the more neurotransmitters, the better. Although you can't stay awake and concentrate without it, too much serotonin will make you feel tired, distracted and even sleepy. Serotonin is an expert in regulating impulse, which can calm the mood and inhibit anxiety, depression, aggressive behavior and impulsive tendency, and is often used as an antidepressant.

5. Gabba-"Relax!"

This is the most widely distributed inhibitory neurotransmitter in the brain. If GABA and serotonin are deficient at the same time, people's aggressiveness and violent tendency will increase. When a person witnesses a violent incident, the gamma-aminobutyric acid in his body will decrease. This neurotransmitter has a sedative effect and is often used to treat anxiety.

6, glutamic acid-"Come, let's get together!"

Glutamate is the "master" that excites the brain. Without it, we can't think quickly and clearly. Unsuccessful, if glutamate is secreted too much for a long time, the brain will go into a state of failure, which is the case with people who use ice and cocaine. Glutamate is also an indispensable substance for connecting neurons in learning and long-term memory.

7, norepinephrine-"safety first!"

This neurotransmitter is a wake-up call to the human body. It recognizes danger and stimulates the brain to secrete adrenaline to deal with it. Adrenaline is related to tension, excitement and energy, and it "accelerates" the secretion of the nervous system. Adrenaline can increase physical and psychological arousal, improve mood and alert level, and prepare for action.