Hair is God’s priceless gift.Healthy hair indicates health and youth. It transmits sensory information and creates gender identity. Hair problems are often found to lower the self-esteem of the sufferers and many a times they face social stigma.
Proper care of the hair is therefore utmost important in today’s world.
The hair growth cycle consists of three distinct stages: anagen, catagen and telogen.
Our hair grows around half an inch a month(normally faster in the summer than in winter.) The growth or anagen phase, lasts an average of 3-5 years.So a full-length hair averages 18 to 30 inches.In few races the length may vary.
At the end of the anagen phase,our hair enters the catagen phase.This short transitional phase lasts approximately 10 days.
Finally, our hair enters the telogen phase, a resting phase when strands are released and falls out. The follicle then remains inactive for 3 months, before the whole process repeats itself.
Each hair follicle goes through the growth cycle independently at different times.On an average a healthy head of hair sheds 80 to 100 hairs daily.
Hair loss, hair thinning and problems with hair growth may occur when your growth cycle is disrupted. This can be triggered by conditions such as metabolic imbalances, illness or improper nutrition.
What causes hair loss?
Changes in hair growth phases such as decrease in proportions of growing phase generally leads to shorter and thinner hair. Prolongation of interval separating the loss of hair in resting phase and emergence of replacement growing phase also leads to hair loss.
Other causes include effect of Androgens on genetically predisposed hair follicles, where 5-alpha reductase converts testosterone to dihydrotestosterone(DHT) which in turn leads to hair loss(Androgenetic Alopecia). Excessive sebum affects the growth of hair follicles by blocking the pores.
Lack of certain nutrients such as Zinc, Vitamins, Essential Fatty Acids, Amino Acids and Proteins affects the functioning of hair follicles and leads to shedding, hair strand breakage.
NEED TO CONTROL
- Shortening of hair growth cycle
- Level of dihydrotestosterone
- Deficiency of hair nutrients (Vitamins, amino acids etc)
Another common problem related to hair is Dandruff.
Dandruff is generally produced when the skin of the scalp exfoliates excessively.
The whitish flakes in the hair which generally falls on our shoulder/collar, are known as Dandruff. Excessive Dandruff becomes an eyesore and also causes itchiness on the scalp/skin.Dandruff is not caused by poor hygiene, although it may be visible more prominently if we do not wash our hair regularly. Stress and cold weather may also make dandruff worse.
What causes dandruff?
- Fungus(Malassezia) is considered as one of the main cause of dandruff. It converts sebum triglycerides into irritating free fatty acids and is involved in scalp hyper proliferation. Under increased sebum activity Malassezia proliferates resulting in the scalp itching and flaking.
- Seborrheic dermatitis is a more severe disorder which include desquamation of facial areas other than the scalp and visible inﬂamation.
NEED TO CONTROL
- Microbial activation
- Seborrheic activity
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