Hair loss and what you need to knowHome / Hair Loss / Hair loss and what you need to know
If you are one of the many individuals considering a hair loss treatment, here is an overview of the most important things you need to know, including the basics of hair loss and hair growth.
How Hair Growth Works
Hair is made up of a protein called keratin (can also be found in nails) produced in hair follicles in the outer layer of skin; follicles produce new hair cells, the old cells are being pushed through the surface of the skin at a rate of about six inches a year. The average adult head has about 100,000 to 150,000 hairs and looses up to 100 of them a day-this is completely normal. Each follicle has its own life cycle and at any one time, 90% of the hair is growing while 10% is resting. The hair life cycle can be influenced by age, disease and wide variety of other factors.
Hair Life Cycle
Anagen This is the growth phase that lasts between two and eight years. During the anagen phase the growth cells in the papilla rapidly divide and produce the hair shaft which becomes keratinized as it pushes up and out of the follicle into the pore. Catagen the Anagen phase is followed by a brief two to four week Catagen phase or transitional phase. This is part of a renewal process where the follicle is literally degraded and the hair stops growing but does not fall out. Telogen The follicle then goes into the Telogen or resting phase for two to four months, during this time the hair still does not grow but remains attached to the follicle while the dermal papilla is in a resting phase below. Approximately 10-15 percent of all hairs are in this phase at any one time. Types of Hair Loss (Alopecia) and Causes Involutional Alopecia is the normal loss of hair around the crown and temples, both in men and women, as the age starts advancing. Men are a larger target for this condition then women are. Androgenetic Alopecia (pattern baldness) accounts for over 90% of all pattern hair loss in both men and women. It is the progressive and gradual loss of hair in certain areas of the scalp. Affects men from early twenties and in some cases earlier-but generally 40.