system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 why does emotional stress cause physical problems to your body, like gases, pimples and back/neck pain?
gpt
Emotions are a response to stimulus, and motivate you to take action. Fear makes you run away, anger makes you fight back. To do this, emotions trigger physical reactions. Most of the time, these reactions are temporary. But in situations where the thing causing the emotion persists, the physical reactions persist. Over the long term, these physical reactions cause physical problems.