PATHOLOGY

Detailed explanation-1: -Light skin provides better absorption qualities of ultraviolet radiation. This helps the body to synthesize higher amounts of vitamin D for bodily processes such as calcium development.

Detailed explanation-2: -At higher latitudes with less regional UV radiation, fair UV-sensitive skin is more common [3]. The fairer the skin, the shorter sun exposure is necessary for vitamin D production and other health effects [1, 4].

Detailed explanation-3: -People who live in far northern latitudes, where solar radiation is relatively weak most of the year, have an advantage if their skin has little shielding pigmentation. Nature selects for less melanin when ultraviolet radiation is weak.