What evolutionary advantage is there to anxiety. A certain amount of worrying forces you to plan, to prepare yourself for future difficulties. But what does anxiety do, worrying about things that are not even clear in your own mind. My mother has spent most of her life in a state of anxiety.
I read that the grizzly bear, a bear which has no reason to be afraid of any of the beasts in the forest has a habit of looking over his shoulder. As if he expected trouble. There was a huge bear (about the size of an elephant), now extinct, which roamed the North American continent. It is thought that the fear of this great bear has been passed through the genes to generations of grizzly bears.
Why do we keep looking over our shoulder?
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