Stress is internal or/and external condition(s) from interrelationships that affect vital maintenance - breathing, walking & eating, that shortens human life-span.
Releasing emotion is different. We are just very simple animals. We are not designed to keep complicated emotions & feelings inside. Whether good or bad, let it go. Let go out of your whole system and empty your whole inside with your exhale.
Fill it up with the blue sky.
Then you become one.
:)