Managing stress helps to lower tension in the body, thereby, preventing stress-induced headaches ... reduces stress and releases endorphins, which act as natural pain relievers.

So, why do so many people enjoy spicy food? In response to the pain, your brain releases endorphins and dopamine. Combined, these chemicals create euphoria similar to "runner's high". Ultimately ...

The experience is due to the combined actions of both beta-endorphins and the ... by the body to reduce the pain in the muscles and joints that was induced by extreme exercising.