system
Given the following post, respond as if you're commenting on Reddit:
human
What is going on internally when we're hungry to make our stomachs "growl"?
gpt
It's muscle contractions along with acid and digestive fluids being released in anticipation of eating. Your body decides you haven't eaten in a while and sends chemical triggers to your brain to trigger your internal desire to eat. Your body then starts preparing to digest the food it believes you will be eating soon.