Why do men bald?

Answer 1

The most noticeable part of human hair is the hair on the head, which is more dense than most hair found elsewhere on the body. The average human head has about 100,000 hair follicles.Each follicle can grow about 20 individual hairs in a person's lifetime. Average normal hair loss is about 100 strands a day.

Incidence of pattern baldness varies from population to population based on diet and personal habits. One large scale study in Maryborough, in central Victoria (Australia) showed the prevalence of mid-frontal hair loss increases with age and affects 57% of women and 73.5% of men aged 80 and over.

Male pattern baldness 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.

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.

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. Most likely, inheritance is technically "autosomal dominant with mixed penetrance" (see 'baldness folklore' below)

There are several other kinds of baldness:

* Traction alopecia is most commonly found in people with ponytails or cornrows who pull on their hair with excessive force. Wearing a hat shouldn't generally cause this, though it is a good idea to let your scalp breathe for 7 hours a day[citation needed].
* Traumas such as chemotherapy, childbirth, major surgery, poisoning, and severe stress may cause a hair loss condition known as telogen effluvium.
* Some mycotic infections can cause massive hair loss.
* Alopecia areata is an autoimmune disorder also known as "spot baldness" that can result in hair loss ranging from just one location (Alopecia areata monolocularis) to every hair on the entire body (Alopecia areata universalis).
* Localized or diffuse hair loss may also occur in cicatricial alopecia (lupus erythematosus, lichen plano pilaris, folliculitis decalvans, central centrifugal cicatricial alopecia, postmenopausal frontal fibrosing alopecia, etc.). Tumours and skin outgrowths also induce localized baldness (sebaceous nevus, basal cell carcinoma, squamous cell carcinoma).
* Hypothyroidism can cause hair loss, especially thinning of the outer third of the eyebrows

Answer 2

Real men go bald because of too much testosterone, the others shave their heads and pretend.

Answer 3

1

Answer 4

Hormones. Testosterone is the main culprit.

Answer 5

Because your hair is made of protein. Since u get older u need more protein and the hair gets briddle and weak

Answer 6

Because as we get older,,.....we know our wives our going to spend even more time in the loo, so we shed the locks to cut down on maintenance time.

Answer 7

Lack of Iodine,magnesium and other mineral on top of that lot lot worries!

Answer 8

It has something to do with their genes