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Abdominal hair is the hair that grows on the abdomen of humans and non-human mammals, in the region between the pubic area and the thorax (chest). The growth of abdominal hair follows the same pattern on nearly all mammals, vertically from the pubic area upwards and from the thorax downwards to the navel. The abdominal hair of non-human mammals ...
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.
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.
Outside of normal hormonal changes and genetics, there are some health issues that may lead to hirsutism, a condition leading to excessive hair growth, which may crop up on the chin, upper lip ...
Cancer. According to the CDC, cancer is the No. 2 leading cause of death in older Americans, behind only heart disease. SeniorCaring.org reports that the cancers most likely to affect people over ...
A 2024 study published in JAMA Network Open found that adults over 60 who regularly drank–classified as 1.5 drinks per day for women–had an increased risk of early death, increased risk of ...
Scalp hair was reported to grow between 0.6 cm and 3.36 cm per month. The growth rate of scalp hair somewhat depends on age (hair tends to grow more slowly with age), sex, and ethnicity. [3] Thicker hair (>60 μm) grows generally faster (11.4 mm per month) than thinner (20–30 μm) hair (7.6 mm per month). [4]
Origin of the word hypertrichosis is in Greek roots (hyper-, ʽexcessʼ; trikhos, hair and -osis, ʽformationʼ) and means a disorder that causes excessive hair growth over the body. Medieval sources do not use this term, however prefer hairy men and women instead. These men and women are often mistaken for savages, who similarly have excessive ...