Why do we get dandruff?

Dandruff:

Dandruff is a condition in which our scalp sheds skin cells in the form of white flakes. Scalp is nothing but the skin covering the head, excluding the face. An yeast called Malassezia globosa is one of the mostly accepted reason for causing dandruff. Malassezia globosa is naturally present on our scalp. It feeds on sebum(oil secreted by sebaceous glands) and releases oleic acid. Some people are sensitive to oleic acid. When it penetrates the skin, causing inflammation. Hence, in response to the inflammation, the skin sheds large number skin cells at the higher rate. These cells, then join together and forms a white flakes. Thus, causing dandruff.