system
Given the following post, respond as if you're commenting on Reddit:
human
When we hurt something like our wrist we either wrap it up to make it warmer or put ice to make it stop swelling. Whats wrong with just the regular body temperature?
gpt
Not a bad question. The point of an ice or warm wrap isn't to control the body's temperature. Rather, it's using temperature as a tool to illicit a response from the body that could assist healing or manage pain. Ice, for example, can help reduce swelling in a broken wrist. Heat can relax injured muscles and increase blood flow. 

You could ask "how come our body can't do this without help?" Well, the human body is pretty good at healing itself, but it's not perfect. This is why we need doctors, medicine and sometimes a icewrap.