According to scientists, there are three causes of alopecia in either men or women.
1 - An abundance of DHT
2 - Lack of vital nutrition
3 - Pseudo-oestrogen chemicals
DHT
Male hormone testosterone is reverted into DHT (a more potent rendering of testosterone). This fresh chemical attaches to the hair follicle receptors thus obstructing vital nutrients from getting into the hair. The hair shrinks and becomes thin and eventually dies. More affectionately known as "peach fuzz" on young men with little hair.
Is this why 'ladyboys' never had any baldness to suffer from? It got Plato scratching his head. It is also why only men get male pattern baldness and not women. Hair loss in women is more evenly spread with thinning over the entire scalp. Also, good DHT inhibiting treatments which incidentally was only effective on adolescent men with hair loss and not older male or females. Too much DHT is however not the sole cause for thinning hair.
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LACK OF VITAL NUTRIENTS
Hair requires a variety of nutrients to sustain itself. The theory here is that both DHT and estrogen-like chemicals blockade the hair follicle thru clasping onto it too compactly. However, even without DHT, a person who lacks nutrients will go thru hair loss.
There have been experiments on mice which show the effect of a deficiency of certain vitamins or minerals. Experts cancelled out the genes in mice responsible for maintaining of the hair and scalp. These genes are then only upkept with vitamin D. The result, horrific, hair loss, rickets and cycts started to appear in the initial phases of the study. Then, when the same scientists injected naturally hairless lab rats with vitamin D, they started developing hair at a shocking speed.
It has been shown that zinc and common copper, if both are lacking, there will be an increase in loss of hair. Plus, a copper peptide was has been used to stimulate hair growth in the tissue surrounding a wound of an injured person. Copper peptide was firstly also utilised as a healing accelerant.
For women on the other hand, a lack of amino acid L-lysine and iron has been linked to losing hair. Therapy which includes these two ingredients have been proven to be effective in stopping and in some cases even reversing hair loss.
PSEUDO-OESTROGEN CHEMICALS
It is ordinarily unheard of for women in Singapore to get hair loss at any age. Over the last two decades an increasing amount of women in industrialized areas are going thru baldness. This has been blamed on chemicals from the nearby industrial buildings which "copy" the chemical side-effects of oestrogen. These pseudo-oestrogen chemicals "hug" tightly around the hair follicle receptors thus starving the hair follicle of critical nutrients, similar to the way DHT does.
And, this too seems to be the reason why overweight men lose hair. Fat cells in weighty and balding males have increased levels of the enzyme aromatase (responsible for turning testosterone into oestrogen). Additionally bacteria in fat cells develop oestrogen-like chemicals.