The Truth About Hair Growth.
Below is a MRR and PLR article in category Business -> subcategory Other.
The Truth About Hair Growth
Discovering the Complex World of Hair
Hair might seem simple, but it's intricately complex and plays a vital role in your body's biology. By 22 weeks in the womb, a fetus already has about 5 million hair follicles, which is all you'll ever have for a lifetime.
Understanding Hair Anatomy
Hair comprises a follicle embedded in the skin and a visible shaft. The follicle has multiple layers, each with distinct functions. At its base is the papilla, which is connected to capillaries supplying blood to the bulb, the bottom part of the strand.
Surrounding the follicle are two sheaths. The inner sheath guides the hair shaft and ends at the oil gland, while the outer sheath extends to the erector pili muscle, making your hair stand when it contracts.
The hair shaft consists of three layers of keratin, a protein. The medulla (sometimes absent) is the innermost layer. The cortex provides bulk and pigment for hair color. The cuticle, the outermost layer, consists of overlapping cells that give your hair its shine.
The Hair Growth Cycle
Hair growth averages six inches per year, or about 0.3?"0.4 mm per day, and involves three stages:
1. Catagen Phase
- A transitional stage lasting 2?"3 weeks
- Around 3% of your hair is in this phase with no growth, as the outer root sheath attaches to the root.
2. Telogen Phase
- Known as the "resting period," involving 15% of hair
- Lasts about 100 days for scalp hair, longer for other hair types.
3. Anagen Phase
- An active growth phase where cells divide
- Lasts 2?"6 years, affecting how long hair can grow.
Hair Growth Disorders
Two main disorders can affect hair growth:
- Hirsutism
- Predominantly affects females
- Results in excessive growth of thick, dark hair in areas like the face and chest.
- Hypertrichosis
- Causes excessive hair in typically hairless areas.
Both conditions are treatable.
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Understanding the complexity of hair can help in managing and treating issues related to hair growth and health.
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