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Chondrodermatitis nodularis chronica helicis (CNCH) is a small, nodular, tender, chronic inflammatory lesion occurring on the helix of the ear, most often in men. [ 2 ] : 610 it often presents as a benign painful erythematous nodule fixed to the cartilage of the helix or antihelix of the external ear. [ 3 ]
H. Harris, publishing in the British Journal of Dermatology in 1947, wrote Native Americans have the least body hair, Han Chinese people and black people have little body hair, white people have more body hair than black people and Ainu have the most body hair. [18] Anthropologist Arnold Henry Savage Landor described the Ainu as having hairy ...
We get it — hair treatments like perms and hair color can be super fun to play around with, especially if you enjoy changing up your look often. Unfortunately, they can wreak havoc on your hair ...
Functionally, the subcutaneous fat insulates the body, absorbs trauma, and serves as a reserve energy source. [14] Conditions of the human integumentary system constitute a broad spectrum of diseases, also known as dermatoses, as well as many nonpathologic states (like, in certain circumstances, melanonychia and racquet nails).
DHT stimulates hair follicle growth in areas more responsive to androgens, like the chin. Some women naturally have more sensitive DHT receptors, meaning that even normal hormone levels may ...
DHT can damage your hair follicles through a process called miniaturization, in which the anagen (growth) phase of the hair growth cycle becomes progressively shorter — resulting in thinner ...
[19] [20] On the other hand, hypertrichosis is defined as excessive hair growth anywhere on the body and is independent of androgen. [3] In addition, hypertrichosis is a condition that affects both males and females while hirsutism is primarily used to describe "male-like pattern terminal hair growth in women within androgen-dependent sites". [2]
While it's normal for hair become thin and gray as we age, factors like stress, an unhealthy diet, smoking and UV exposure may cause hair to age earlier or faster, the experts note.