Androgenetic Alopecia (common baldness)
Alopecia (al-o-PEE-sha) is the medical term for excessive hair loss or baldness in an area of the body where hair is normally present. Usually, it refers to scalp hair.
Androgenetic alopecia, also called male type or female pattern baldness, is a common dermatological condition that is estimated to affect up to 60% of men during their lifetime. This condition also occurs in approximately 30% of women. In both sexes, the cause is a complex mix of inherited and hormonal factors.
The adult human body averages some five million hairs, of which approximately 100,000 are located on the scalp the actual numbers of hairs vary according to the individual's race and hair colour. For example, blondes typically have more head hair (about 120,000 strands) than persons with brown or black hair (about 100,000), or redheads (about 80,000).
Like skin cells, hair grows and is shed regularly. Shedding up to 100 hairs per day is considered normal. The average rate of growth is about 1/2 inch per month. As a rule, hair grows best between the ages of 15 to 30, then declines sharply between 50 and 60. Of the sexes, women's hair generally grows faster than men's.
An estimated 50 million men and 30 million women in North America experience excessive hair loss or thinning hair related to androgenetic alopecia. This makes the condition the largest single-type of recognizable alopecia affecting both men and women.
Following the onset of androgenetic alopecia, shafts of hair become increasingly shorter, thinner and lighter or even transparent in colour. Eventually, the hair follicles are no longer capable of producing new hair.
The actual rate of hair shedding is hastened by three primary factors: age, hereditary, and increased levels of the male hormone, dihydrotestosterone (DHT) within the hair follicle.
DHT is a highly active form of testosterone that influences many aspects of behavior, from
sex drive to aggression.
Most cases of permanent hair loss in males and females result from common baldness, also know as pattern baldness, or by its scientific name, androgenetic alopecia.
In women, it is characterized by general thinning with moderate loss of hair at the hair-line and crown.
In men, it is characterized by a receding hair-line with moderate to extensive loss at the crown.
Androgenetic Alopecia (common baldness)
Alopecia (al-o-PEE-sha) is the medical term for excessive hair loss or baldness in an area of the body where hair is normally present. Usually, it refers to scalp hair.
Androgenetic alopecia, also called male type or female pattern baldness, is a common dermatological condition that is estimated to affect up to 60% of men during their lifetime. This condition also occurs in approximately 30% of women. In both sexes, the cause is a complex mix of inherited and hormonal factors.
The adult human body averages some five million hairs, of which approximately 100,000 are located on the scalp the actual numbers of hairs vary according to the individual's race and hair colour. For example, blondes typically have more head hair (about 120,000 strands) than persons with brown or black hair (about 100,000), or redheads (about 80,000).
Like skin cells, hair grows and is shed regularly. Shedding up to 100 hairs per day is considered normal. The average rate of growth is about 1/2 inch per month. As a rule, hair grows best between the ages of 15 to 30, then declines sharply between 50 and 60. Of the sexes, women's hair generally grows faster than men's.
An estimated 50 million men and 30 million women in North America experience excessive hair loss or thinning hair related to androgenetic alopecia. This makes the condition the largest single-type of recognizable alopecia affecting both men and women.
Following the onset of androgenetic alopecia, shafts of hair become increasingly shorter, thinner and lighter or even transparent in colour. Eventually, the hair follicles are no longer capable of producing new hair.
The actual rate of hair shedding is hastened by three primary factors: age, hereditary, and increased levels of the male hormone, dihydrotestosterone (DHT) within the hair follicle.
DHT is a highly active form of testosterone that influences many aspects of behavior, from
sex drive to aggression.
Most cases of permanent hair loss in males and females result from common baldness, also know as pattern baldness, or by its scientific name, androgenetic alopecia.
In women, it is characterized by general thinning with moderate loss of hair at the hair-line and crown.
In men, it is characterized by a receding hair-line with moderate to extensive loss at the crown.
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