system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How can your body's feet be ice-cold when the rest feels warm?

I sometimes find myself in my house and it's too warm to wear a sweatshirt but my feet will be ice cold. I heard that warming the torso area helps to warm extremities but I have been on the verge of sweating with ice-cold extremities. Please explain how this is possible?
gpt
They aren't getting as much blood flow as the rest of your body due to being so far away from the heart. Plus when it's cold your blood vessels tighten up to keep core temperature and minimalize heat loss.

Its why you shouldn't drink alcohol when it's cold because it dialates the blood vessels. You'll feel warm while you freeze to death.