Why does your stomach churn when you are nervous?

When you're nervous, your body initiates the "fight or flight" response, releasing stress hormones like adrenaline. This triggers various physical reactions, including increased heart rate and changes in digestion, leading to sensations like stomach churning. The digestive system slows down or becomes more sensitive during stress, which can cause discomfort and a feeling of unease in the stomach. This response is a natural part of how the body prepares to handle perceived threats.