system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What exactly happens inside our body that gives us cramps around spleen level while running?
gpt
There’s no clear answer, but the diaphragm has generally been ruled out because swimmers get it and their muscle use doesn’t put the same pressure on the diaphragm. In walking and running, it is almost always caused by uneven pacing. If it ever strikes, try focusing on making every step the same pace. It will generally fix it. There’s a reason why it hits the less fit kids (running at the end of the line, stopping, then hurrying to catch up, then slowing, then speeding up again) more than, say, track and field athletes.