system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: what is the biological reason as to why we get "stitches" when we run or eat a big meal?
gpt
The classic "runner's stitch" is from the diaphragm fatiguing and cramping from too much stress. With running this is obviously due to the increases in breathing due to the exertion. If you are over stressing the diaphragm when you are eating then you are doing something terribly wrong and need to cut back on engorging yourself like some sort of snake.