Where does the feeling of cold come from? Is it from heat rushing past cells, when we step outside in the cold, that creates this feeling we signal as cold?
Coldness is the absense of heat and the difference between your body heat and the temperature around your body. The sensation comes from the feeling of heat leaving our body at a faster than comfortable rate. This can be an isolated or global feeling. So if you touch an ice cube it feels cold because the ice cube is drawing heat away from your hand and into the ice cube until it melts and creates an equilibrium between the temp of your hand and the ice cube. This is a laymans explanation.blt93932 said:Where does the feeling of cold come from? Is it from heat rushing past cells, when we step outside in the cold, that creates this feeling we signal as cold?
Thermoception is the sense by which an organism perceives temperature. In larger animals, most thermoception is done by the skin. The details of how temperature receptors work is still being investigated. Mammals have at least two types of sensor: those that detect heat (i.e. temperatures above body temperature) and those that detect cold (i.e. temperatures below body temperature).