It's basically a way of sucking up to someone and it's almost as annoying and shallow as when girls post shit like omg stop being so perf! and then of course the required response is no that's you bb ð and it goes back and forth like that.
Temperature receptors. The sensory system involved in perceiving the changes in skin temperature begins with free nerve endings found in the dermal and epidermal layers of skin that can be functionally classified as cold and warm thermoreceptors.
Thermoreceptors: Warm and Cold Fibers. Our ability to detect temperature changes originates from two types of specialized receptors called thermoreceptors. Similar to pain receptors, these link to free nerve endings and are specific for both warm and cold stimuli.