Why getting stressed?

Is stress something good or something bad? Why does stress exist, how does it emerge and has it a mission? Do we get stressed because of outer conditions or are we causing it ourselves?

In today’s society I often say that it is healthy being sick (stressed). And you can not plant a seed in toxic soil, expecting a beautiful plant and flower to grow up.

More to find on my other site.

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Alvaret. Öland.