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Body hair or androgenic hair is terminal hair that develops on the human body during and after puberty. It is different from head hair and also from less visible vellus hair, which is much finer and lighter in colour. Growth of androgenic hair is related to the level of androgens (male hormones) and the density of androgen receptors in the ...
This trait is determined by the hair follicle volume and the condition of the strand. [27] Fine hair has the smallest circumference, coarse hair has the largest circumference, and medium hair is anywhere between the other two. [27] Coarse hair has a more open cuticle than thin or medium hair causing it to be the most porous. [27]
Growth of body hair, including underarm, abdominal, chest, and pubic hair. [4] [1] Growth of facial hair. [1] Enlargement of the larynx (Adam's apple) and deepening of the voice. [1] [24] Increased stature; adult males are taller than adult females, on average. [1] Heavier skull and bone structure. [1] Increased muscle mass and strength. [1]
The top and the upper portion of the back and sides are cut the same length, which generally ranges between 5 millimeters (.25 in) and 20 millimetres (.75 in), following the contour of the head. The hair below the upper portion of the sides and back of the head is tapered short or semi-short with a clipper, in the same manner as a crew cut ...
Vellus hair replaces lanugo hair on a human fetus at 36 to 40 weeks of gestation. [2] The growth cycle of vellus hair is different from the growth cycle of terminal hair. At puberty, androgen hormones cause much of the vellus hair to turn into terminal hair and stimulate the growth of new hair in the armpit and the pubic area. In men, this ...
Some differences in human appearance are genetic, others are the result of age, lifestyle or disease, and many are the result of personal adornment. Some people have linked some differences with ethnicity, such as skeletal shape, prognathism or elongated stride. Different cultures place different degrees of emphasis on physical appearance and ...
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Brown hair, also referred to as brunette (when female), is the second-most common human hair color, after black hair. It varies from light brown to dark hair. It is characterized by higher levels of the dark pigment eumelanin and lower levels of the pale pigment pheomelanin .