MICROANATOMY

Detailed explanation-1: -A layer of hair or fur even as thin as the hair on our arms can trap air and create an insulating layer between our skin and the colder temperatures outside. The thicker the fur and the oilier it is the better the insulation.

Detailed explanation-2: -Long, full, and thick hair may retain more heat during hot weather, but with the following tips, you will be able to beat the heat.

Detailed explanation-3: -The blood vessels of the dermis provide nutrients to the skin and help regulate body temperature. Heat makes the blood vessels enlarge (dilate), allowing large amounts of blood to circulate near the skin surface, where the heat can be released. Cold makes the blood vessels narrow (constrict), retaining the body’s heat.