Why Do We Dream?
3. Training
For us, survival is largely a case of going to work in order to make money so we can pay the bills. It has not always been that way for humans, however. There was a time when we lived in the wild and faced all the dangers that other wild animals do including predators.
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The flight or fight response is a survival instinct that means we instantly choose between trying to escape and standing our ground. The part of the brain responsible for controlling this response is the amygdala, and it is more active when we are dreaming. It might be that dreaming will help to train us in preparation for dealing with situations in the future.
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