Chapter 144 Don't Mess Around_2

When people's emotions are pushed to extremes, such as when facing fear or death, the sympathetic nervous system often becomes collectively activated.

At the same time, the release of norepinephrine and adrenaline in the body causes a massive activity of the internal organs, providing fuel for the brain.

This body-wide response resulting from the activity of the sympathetic nervous system is known as the "Fight-or-Flight Response."

It refers to a stress response that prepares the body for defense, struggle, or flight driven by the nerves and glands.

In this state, the secretion of adrenaline and brain stress hormones accelerates.

The heartbeat quickens, blood vessels constrict, accelerating blood circulation, and increasing the supply of oxygen throughout the body.

Unnecessary organs in the body receive less blood supply, while the brain and major muscles of the body receive increased blood supply.