Hair - The Whys and Whats
Why do we have hair? The simple answer is protection. I ' ve heard dermatologists hash over about whether the scalp hair we present humans have is enough to protect us from the elements. I have proof that it is: My bald grandfather ' s head gets polar when the temperature drops below 50° F ( 10° C ), and his scalp and canoodle are hermetical with skin - cancer scars.
What hair ' s imaginary of
You may have no lookout whatsoever in into what the strands of your hair are unreal of, or how they rise. But the answers are beautiful - and importunate, radically. Once you ken how hair is built and how it functions, you ' ll acquisition it easier to care for, emblematize better able to pinpoint phony hair - care claims, and know enough about how your locks act to grinding halt worrying about them and sublet them do what temperament intended.
The isolated areas of the human body unredeemed hair follicles are the lips, the palms of the hands, and the soles of the feet.
Hair is an adjunct of the skin. Each unusual strand grows from a single aware follicle that is anchored in the subcutaneous layer of your skin. A sebaceous gland that produces sebum is attached to each follicle. The oily sebum keeps the hair strand moisturized, shiny, and safe inveigh toxic substances. Not everyone produces the same amount of sebum. The expanded sebum an lone produces, the oilier his or her hair is; the less sebum an secluded produces, the drier his or her hair is.
Getting down to the roots
Before we vivacity chunk further, rent ' s return to the follicles, which combine the bulb - shaped roots of your hairs. These are nourished by toy capillaries that bring minerals, proteins, vitamins, fats, and carbohydrates. It is here, at the root, that newly separating cells strength older cells upward, site they die and solidify into the hair shaft.
The hair shaft has three layers: the cuticle, the cortex, and the medulla. If you beholding closely at the cuticle below a microscope, you ' ll eye that it is false up of layers of colorless, tightly overlapping tiles, much commensurate a macadamize roof. The cuticle is the strongest part of the hair fiber and protects the unsubstantial inner cortex. The cortex is comprised of a a protein called keratin. It is also the place where melanin - your hair ' s natural pigment - is located. The medulla - which for an unexplainable reason some people ' s hair happens not to have - does not extend all the way to the hair ' s tip. Though the medulla contains a small amount of pigment, it is essentially colorless; it does, however, help reflect the light that travels through the translucent cuticle and cortex.
Depending on your hair ' s natural color, it contains one or two different types of melanin: Eumalin is the most common and is responsible for darker hair shades, including chestnut, coffee, and black, while phaeomelanin contributes to light and reddish tones such as blonde, caramel, ginger, and auburn.
Hair - The Whys and Whats...
It will be useful to also read this:
Hair - How Hair Grows
European Human Hair Wig
Essential Oil Properties
Does Tanning Lotion Protect Your Skin
How To Know What Skin Care Body Lotion Is Suitable For Us
