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Although vellus hair is already present in the area in childhood, chest hair is the terminal hair that develops as an effect of rising levels of androgens (primarily testosterone and its derivatives) due to puberty.
Vellus hair grows on the chest and abdomen of both sexes at all stages of development. During the final stages of puberty and extending into adulthood, men grow increasing amounts of terminal hair over the chest and abdomen areas. Adult women can also grow terminal hairs around the areola, though in many cultures these hairs are removed.
Testosterone is the primary male sex hormone and androgen in males. [3] In humans, testosterone plays a key role in the development of male reproductive tissues such as testicles and prostate, as well as promoting secondary sexual characteristics such as increased muscle and bone mass, and the growth of body hair.
Symptoms of hot flashes include sudden feelings of warmth across your face and chest, sweating, and redness. ... In addition to affecting body hair growth, low testosterone may also reduce the ...
At any given time, up to 15 percent of the hairs on your body (including facial hair, arm hair and even chest hair) are in the telogen phase. This stage can last up to a year.
Losing facial and body hair can also be a symptom of low testosterone in men. However, hair loss on the head is typically not a sign of low ... chest pain, an abnormally rapid heart rate ...
This includes facial hair, chest hair, abdominal hair, leg and arm hair, and foot hair. [7] Human females on the other hand generally retain more of the vellus hair. [8] These hairs are present in the large apes but not in the small apes like gibbons and represent an evolutionary divergence. [9]: 193 [better source needed]
Dihydrotestosterone (DHT) is an androgen derived from testosterone, and it can have a strong effect on hair growth, says Dorr. DHT stimulates hair follicle growth in areas more responsive to ...