Why/how do we get scared?

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Why/how do we get scared?

In: Biology

Why: It’s an evolutionary adaptation to protect us from danger.

Not sure exactly what you mean by “how”.

Flight or fight response from evolution. Makes sense. If we see a tiger the initial reaction shouldn’t be too walk up and pet it.
Stressor= the amygdala in brain sends a distress signal, and hypothalamus activates the nervous system by sending signals through the nerves to the adrenals that produce epinephrine .