system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:Why does getting hit in the shin hurt far more than say your forearm?

I would put getting hit in the shin on the same level as getting hit in the berries. I understand the advantage to making your balls extremely sensitive (they are important, so it's your brain telling you to avoid any trauma to that area AT ALL COSTS) but why the shins?
gpt
The "sharp" edge of the shin is the part which hurts the most. This is because there is almost no muscle over the bone, just a thin layer of skin and fat which makes any hit go directly against the periostium, the tissue covering the bones, which has A LOT of nervous endings. Also, as it is a sharp area, most of the strenght of the impact falls on one small point.