The movie "The Science of Adrenaline" that understands the chemical action when a person gets excited

When the sympathetic nerve becomes active, "Do you fight or run away?Adrenaline, also called hormone, is secreted. What changes are occurring in the body when adrenaline is secreted and horsepower of the fire place comes out is a movie "The Science of AdrenalineYou can understand well if you look at.

The Science of Adrenaline - YouTube


During a walk……


Suppose you saw someone's underlaying a fallen tree.


Then a person who gets excited may be able to lift even heavy trees.


This is due to the action of hormones.


We assume the situation that "bear is going to be attacked".


At this time, perceptual information "dangerous!" Is sent to the hypothalamus of the brain ... ...


Sympathetic nerves are stimulated. This will make the body tense, move faster, or raise dangerous awareness.


At the same time a signal is sent to the adrenal gland,Adrenaline (epinephrine)ButNoradrenalin,CortisolIt is sent out in the blood.


This will make your body ready for anything.


Changes are occurring in the body. For example, heart rate and blood pressure rise.


The pupil is enlarged.


Many blood is carried to muscle.


This makes the muscles tight like hulk.


In addition, cortisol and adrenaline increase the blood sugar level ... ....


It is in a state where the muscles can exert their power further.


Thanks to that, we fight bears ......


Even if you can not do it, you will be able to escape as quickly as possible.


The wonderful part of this reaction is where the body preparations are made without permission without considering correspondence with "Bear! The human body has a truly magical mechanism.