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  2. Puberty - Wikipedia

    en.wikipedia.org/wiki/Puberty

    Arm, leg, chest, abdominal, and back hair become heavier more gradually. There is a large range in amount of body hair among adult men, and significant differences in timing and quantity of hair growth among different racial groups. Facial hair is often present in late adolescence, but may not appear until significantly later.

  3. Human hair growth - Wikipedia

    en.wikipedia.org/wiki/Human_hair_growth

    Hair is a stratified squamous keratinized epithelium made of multi-layered flat cells whose rope-like filaments provide structure and strength to the hair shaft. The protein called keratin makes up hair and stimulates hair growth. Hair follows a specific growth cycle with three distinct and concurrent phases: anagen, catagen, and telogen. Each ...

  4. Body hair - Wikipedia

    en.wikipedia.org/wiki/Body_hair

    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 ...

  5. Secondary sex characteristic - Wikipedia

    en.wikipedia.org/wiki/Secondary_sex_characteristic

    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]

  6. Chest hair - Wikipedia

    en.wikipedia.org/wiki/Chest_hair

    The individual occurrence and characteristics of chest hair depend on the genetic disposition, the hormonal status and the age of the person. The genes primarily determine the amount, patterns and thickness of chest hair. Some men are very hairy, while others have no chest hair at all. All ranges and patterns of hair growth are normal.

  7. 12 Best Vitamins for Hair Growth - AOL

    www.aol.com/lifestyle/12-best-vitamins-hair...

    You might be wondering whether hair growth supplements can solve the problem — and if so, what the best vitamins for hair growth are. ... Most adults need about 400 micrograms of folate daily ...