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The secondary sex characteristics differ in that they will not be identifiable at birth, they will develop as the subject becomes sexually mature. In mammals, these characteristics may include increased mammary tissue in females and greater muscle mass in males. Secondary sexual characteristics have an evolutionary purpose: increase the chance ...
Hyperandrogenism is a medical condition characterized by high levels of androgens.It is more common in women than men. [4] Symptoms of hyperandrogenism may include acne, seborrhea, hair loss on the scalp, increased body or facial hair, and infrequent or absent menstruation.
The excess androgens can lead to disruptions in normal body hormones in the hypothalamic-pituitary-gonadal axis leading to these symptoms. [21] With PCOS, hair may grow on the face (like on the upper lip, chin, or jawline), chest, stomach, and back. [22] Characterized by having two of three Rotterdam criteria:
A bearded lady (or bearded woman) is a woman with a naturally occurring beard normally due to the condition known as hirsutism or hypertrichosis. Hypertrichosis causes people of either sex to develop excess hair over their entire body (including the face), while hirsutism is restricted to females and only causes excessive hair growth in the ...
Hirsutism is a type of hypertrichosis exclusive to women and children, resulting from an excess of androgen-sensitive hair growth. [16] Patients with hirsutism exhibit patterns of adult male hair growth. [1] Chest and back hair are often present on women with hirsutism. [16] Hirsutism is both congenital and acquired.
Sex differences in human physiology are distinctions of physiological characteristics associated with either male or female humans. These differences are caused by the effects of the different sex chromosome complement in males and females, and differential exposure to gonadal sex hormones during development.
The real and lasting effects of ageism. The global life expectancy was 71.4 years in 2021, but healthy life expectancy in older age is more than the absence of disease. Things that impact healthy ...
In some cases facial hair development may take longer to mature than the late teens, and some men experience no facial hair development even at an older age. It is common for many women to develop a few facial hairs under or around the chin, along the sides of the face (in the area of sideburns), or on the upper lip.