system
Given the following post, respond as if you're commenting on Reddit:
human
Why does anxiety cause digestive issues?
gpt
The hormone cortisol is released in response to stress, be it physical or emotional. It also has many other functions such as immune suppression, waking the body from sleep, blood pressure regulation, and glucose homeostasis. Another function of cortisol is preparing the body for digestion by causing the liver to increase bile acid production. Excess levels of the hormone can cause exaggerated responses, one side-effect of which may be a feeling of indigestion.