A genetic predisposition of hormonal balances and imbalances and the conversion of testosterone into dihydrotestosterone (DHT) are the general causes of hair loss.
Hair style that pull hair too tight
When hair is tied up, hair follicles are bent out of their natural growth direction and forced in one direction. The straining of the hair follicles restricts healthy blood flow to entire scalp as time progresses. The longer and tighter hair is tied up, the more tension scalp endures and increases the tendency of hair loss.
The aging process can play a role in follicle deterioration that may lead to hair loss. Nearly everyone will encounter hair loss by age 60. The rate of hair growth slows down with increasing age and thick hair eventually becomes thin, fine, light-colored hair in middle age.
Wrong pick of hair care products
Frequent use of hair gels, hair waxes, hair sprays and styling creams may accumulate as build-ups on your scalp and hair. Thus, shampoos and conditioners that contain silicone may coat the hair which prevents nutrients from hair care products to penetrate the hair shaft.
Stress & Trauma
Stress can bring an advert effect for the hair growth cycle when stress produces an increase in levels of testosterone. When testosterone converts to DHT, the hair growth cycle may be interrupted. Indeed, stress and trauma can also constrict the blood supply to the capillaries, causing a lack of oxygen and nutrient uptake, as well as poor vitamin and nutrient assimilation of the hair follicles.
Environmental pollutants in the air and water, as well as exposure to chlorine, metals and minerals, can lead to hormonal imbalances that can contribute to hair loss. UV exposure and free radicals can also prematurely age the scalp cells and damage the hair shaft.
Nutrition & Diet
Poor nutrition, rapid weight loss and deficiencies in biotin, iron, protein and zinc intake can reduce the vital amino acid and vitamin assimilation needed for hair growth.
Hair loss that is connected to pregnancy usually occurs after delivery due to hormonal change. An increased number of hairs go into the resting phase during pregnancy, which is part of the normal hair loss cycle. Due to a vitamin or mineral deficiency, some female may suffer from unusual hair loss during pregnancy.
Birth control, steroids and chemotherapy together with certain blood pressure, diabetic, heart disease and acne medications, can cause temporary or permanent hair loss.