system
Given the following post, respond as if you're commenting on Reddit:
human
When I bleed, why isn't my blood at 98.6 degF?

I understand that it'll cool really quickly from exposure, but even if I'm using my finger to apply pressure against a wound it still wont be particularly hot.
gpt
98.6 deg F should not feel hot. It should feel slightly warm to neutral. If you have a good thermometer you can test this yourself. Prepare a cup of 98.6 degree water and stick your finger in it. It will feel slightly warm (your fingers are a few degrees colder than your core body temperature, so 98.6 will feel slightly warm rather than neutral). But now remove your finger and see how warm your wet finger feels. It will feel neutral to slightly cold. This is because the thin layer of water rapidly cools and because of evaporative cooling (the reason why we perspire and why being wet makes you cold).