PATHOLOGY

Detailed explanation-1: -Normally, the vessels that supply blood to the skin constrict or narrow in response to cold temperatures. This reaction, called “vasoconstriction, ‘’ decreases blood flow to the skin, which helps to minimize heat loss from the warm blood and therefore preserve a normal internal or “core” temperature.

Detailed explanation-2: -In contrast, when we are feeling too cold, the blood vessels in our body will vasoconstrict, or shrink, moving further away from the surface of the skin. This is like changing out a thin blanket for a thicker one, causing us to insulate and retain heat.

Detailed explanation-3: -The smallest blood vessels, the capillaries, also dilate and this makes your skin feel warm to the touch. The blood vessels will narrow again when the body temperature is back to normal. Helping the body with this temperature regulation process will help you cool down and stay cool when the weather is hot.