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Baldness, includes a set of disorders which involve the state of lacking hair where it would normally grow, especially on the head. The most common form of baldness is a progressive hair thinning condition called androgenic alopecia or 'male pattern baldness' that occurs in adult human males and some primate species. The severity and nature of baldness can vary greatly; it ranges from male and female pattern alopecia (androgenetic alopecia, also called androgenic alopecia or alopecia androgenetica), alopecia areata, which involves the loss of some of the hair from the head, and alopecia totalis, which involves the loss of all head hair, to the most extreme form, alopecia universalis, which involves the loss of all hair from the head and the body. Treatment for alopecia has limited success. The more hair lost, the less successful the treatment will be.

Male pattern baldness is thought to occur in varying forms in about 66% of adult males at some point in their lives.* It is characterized by hair receding from the lateral sides of the forehead, known as "receding hairline" or "receding brow." An additional bald patch may develop on top (vertex). The trigger for this type of baldness (called androgenic alopecia because it is caused by male hormones or androgens) is DHT, a powerful sex hormone.http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=15097964&query_hl=2&itool=pubmed_docsum The mechanism by which DHT accomplishes this is not yet understood. In genetically-prone scalps, DHT initiates a process of follicular miniaturization. Through the process of follicular miniaturization, hair shaft width is progressively decreased until scalp hair resembles fragile vellus hair or "peach fuzz" or else becomes non-existent. Onset of hair loss sometimes begins as early as end of puberty, and is mostly genetically determined. Male pattern baldness is classified on the Hamilton-Norwood scale I-VIII. Female pattern baldness, in which the midline parting of the hair appears broadened, is less common. It is believed to result from a decrease in estrogen, a hormone that normally counteracts the balding effect of testosterone, which normally occurs in women's blood. Female pattern baldness is classified on the Ludwig scale I-III.

It was previously believed that baldness was inherited from a person's maternal grandfather. While there is some basis for this belief, both parents contribute to their offspring's likelihood of hair loss. (see 'baldness folklore' below)

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(RT: @thecoolestmutha How come Caillou don't have no hair?) Maybe he has Alopecia :(
prada_king (Farakhan Durant) Wed, 09 Dec 2009 14:15:34 -0000
(RT: @thecoolestmutha How come Caillou don't have no hair?) Maybe he has Alopecia :(
[Hair]Hair loss, or alopecia, is certainly not a new phenomenon. It is a condition that has been affecting both men and women for centuries.
ammasresponses (Ammas Responses) Wed, 09 Dec 2009 11:00:40 -0000
[Hair]Hair loss, or alopecia, is certainly not a new phenomenon. It is a condition that has been affecting both men and women for centuries.
Hmm. Alopecia is derived from latin for 'fox mange'. HeadnShoulders could rebrand: HeadnShoulders. For rangy, not mangy, foxes.
gctim (gctim) Wed, 09 Dec 2009 07:24:49 -0000
Hmm. Alopecia is derived from latin for 'fox mange'. HeadnShoulders could rebrand: HeadnShoulders. For rangy, not mangy, foxes.
@TheGotcha I donated all 3 hairs to the American society for Midgets with Alopecia they rejected due to xxx brazilians are all the rage :|
xx_MissJenna_xx (Jennifer Collins) Wed, 09 Dec 2009 06:51:50 -0000
@TheGotcha I donated all 3 hairs to the American society for Midgets with Alopecia they rejected due to xxx brazilians are all the rage :|
Bald Girls founder Chassin launches 2010 Women with Alopecia campaign in Scottsdale, AZ 12/18
alopecia (Bald Girls Do Lunch) Wed, 09 Dec 2009 06:06:20 -0000
Bald Girls founder Chassin launches 2010 Women with Alopecia campaign in Scottsdale, AZ 12/18
Most Common Vatican Illness No. Six: St. Francis of Alopecia
ELDING (Elvis Dingeldein) Wed, 09 Dec 2009 04:47:40 -0000
Most Common Vatican Illness No. Six: St. Francis of Alopecia

 
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Alopecia Kids: Sydney - Provides a message board, jokes, puzzles, and contact information.

KidsHealth: Help! It's Hair Loss! - Learn about hair, what causes it to fall out, and what the doctor can do.
Meta Description: [ Some kids worry about hair loss. ]

Medline Plus: Alopecia Tutorial - Explains alopecia in simple terms, anatomy, types, causes, and treatment.

National Alopecia Areata Foundation: Kids Konnect - Presents facts for kids and teens about this common disease that results in the loss of hair on the scalp and elsewhere. Support groups and message boards.
Meta Description: [ NAAF National Alopecia Areata Foundation Web Site ]

TeensHealth: Hair Loss - Article about how it grows, causes of hair loss, kinds of treatment, and tips to keep it healthy.
Meta Description: [ Baldness or hair loss may seem like something only adults need to worry about. But when teens begin to lose more than the usual amount of hair, it can mean that something is going on. ]

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