Why are parts of Antarctica considered to be a desert? It is hot during the day and cold at night in these areas.

There are only small trees and penguins in these

The areas receive less than 5 cm of precipitation per year.

These areas are known for very large snow storms.

Like a panic button, the amygdala issues an alert, summoning other parts of the brain that play a role in the experience of fear, one example would be your hypothalamus. Amygdala as stated is the center for emotions, emotional behavior and motivations.