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[Causes of Hair Loss]

Causes of hair loss

The hair follicle is a sac-like structure that surrounds the hair root.It is found below the skin and has very small blood vessels giving it nourishment.Hormones play dominat role when talking about alopecia.Both women and ,men produce testosterone,which can be converted to dihydrotestosterone.DHT shrinks hair follicles causing the membrane in the scalp to thicken become inelastic and restrict blood flow,this cause the hair follicles to atrophy.Men produce more testosterone than women and experience more hair loss.Many people suffer from hair loss,balding due to our modern lifestyles:stress,nutritional deficiences,alhocolic beverages.Also pollutants and chemicals,perming,dyeing cause hair loss.
 

What is normal about hair loss

It is important to note that hair loss is a natural process with anything from 50-100 hairs randomly shed each day.The normal cycle of hair growth lasts for 3-8 years,after 3-4 months,the resting hair falls out and new hair starts to grow in it’s place.Mechanism by which men and women lose their hair is different.Also time of onset of hir loss is different.Considering these differences Yello X developed 4 types of shampoo:for men and women ,for normal to oily and normal to dry hairs.

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