Why people get excited I need psychological and physiological answers

Generally speaking, there are two kinds of excitement, the first is because of the encounter with something happy, and the second is when the encounter with something fearful. But when we encounter some unexpected events, our bodies produce adrenaline to cope with the upcoming emergencies. Adrenaline causes blood vessels in secondary areas of the body to constrict, and pushes a lot of the saved blood to major areas, such as the brain and heart.

At this time, people will be excited, and the main skills of the human body will be improved, just like the King of the World Fist in "Dragon Ball", but the King of the World Fist can not raise intelligence, but adrenaline can improve strength, defense, speed, intelligence, and so on.

Don't forget that man is a living organism, they have their own genetically determined functions, and they also continue life through the material and spiritual exchange with the environment. Specifically, it is because of the way people eat and behave in a way that causes the brain"Secretion"out of certain chemicals, they cause a feeling of excitement. And through a series of chemical and physical processes, a series of changes are produced.

In the case of a person's specific conditions, certain glands will respond to external conditions and secrete some hormones that affect the functioning of organs. Different conditions produce different hormones, resulting in different responses.

Unfortunately, this is a secret of the brain and nerves, and we humans know very little about it.

A reflex that arises from seeing something you like or someone you like.

Elevated adrenaline leads to excitement.

I'm excited, I've won the lottery again, five yuan, a bowl of ramen.

Excitatory neurotransmitters and inhibitory neurotransmitters are of course significantly different, first of all, the types of transmitters are different, excitatory neurotransmitters include acetylcholine, norepinephrine, serotonin and so on. Inhibitory neurotransmitters include dopamine, glycine, aminobutyric acid, etc. The principle of action of excitatory neurotransmitters is also different.

Excitatory neurotransmitters can promote the production of action potentials, while inhibitory neurotransmitters can inhibit the production of action potentials.

【Help】Regarding depolarization block, why are fast sodium channels inactivated at -55mV?