Does anyone want to have a discussion on dandruff,headlice or any other human hair infection?

No but I am now scratching my head.

The health issues of pubic hair are controversial. Some studies show that removal of pubic hair may cause fungal infection of genitalia, especially in women

Human hair consists of the hair shaft, which projects from the skin's surface, and the root, a soft thickened bulb at the base of the hair embedded in the skin. The root ends in the hair bulb. The hair bulb sits in a sac-like pit in the skin called the follicle, from which the hair grows.

At the bottom of the follicle is the papilla, where hair growth actually takes place. The papilla contains an artery that nourishes the root of the hair. As cells multiply and produce keratin to harden the structure, they are pushed up the follicle and through the skin's surface as a shaft of hair. Each hair has three layers: the medulla at the center, which is soft; the cortex, which surrounds the medulla and is the main part of the hair; and the cuticle, the hard outer layer that protects the shaft.

Hair grows by forming new cells at the base of the root. These cells multiply to form a rod of tissue in the skin. The rods of cells move upward through the skin as new cells form beneath them. As they move up, they are cut off from their supply of nourishment and start to form a hard protein called keratin in a process called keratinization (pronounced: ker-uh-tuh-nuh-zay-shun). As this process occurs, the hair cells die. The dead cells and keratin form the shaft of the hair.
The hair on our heads isn't just there for looks. It keeps us warm by preserving heat. The hair in our nose, ears, and around our eyes protects these sensitive areas of the body from dust and other small particles. Eyebrows and eyelashes protect our eyes by decreasing the amount of light and particles that go into them. The fine hair that covers our bodies provides warmth and protects our skin. Hair also cushions the body against injury.

Each hair grows about 1/4 inch (about 6 millimeters) every month and keeps on growing for up to 6 years. The hair then falls out and another grows in its place. The length of a person's hair depends on the length of the growing phase of the follicle. Follicles are active for 2 to 6 years; they rest for about 3 months after that. A person becomes bald if the scalp follicles become inactive and no longer produce new hair. Thick hair grows out of large follicles; narrow follicles produce thin hair.

The color of a person's hair is determined by the amount and distribution of melanin in the cortex of each hair (the same melanin that's found in the epidermis). Hair also contains a yellow-red pigment; people who have blonde or red hair have only a small amount of melanin in their hair. Hair becomes gray when people age because pigment no longer forms.

Black piedra Piedraia hortai black nodule on hair shaft black nodule on hair shaft composed of spore sacs and spores

White piedra Trichosporon beigelii creme-colored nodules on hair shaft white nodule on hair shaft composed of mycelia that fragment into arthrospores

Ectothrix infection of hair shaft surface mycelium and spores on hair shaft

Endothrix infection of hair shaft interior mycelium and spores in hair shaft

Mach said:

I wish they would come out with some sound evidence to support this. I have had several discussions about this issue.

thanks Mach!

shanti0608 said:

Hair is there for a reason though ...

Mach said:

I agree. We have hair all over our body though like our legs and I am not sure what benefit it has.

shanti0608 said:

I just read about it it is part of our cooling system - " goosebumps " tiny muscles or the hair shafts are stimulated to stand on end to increase blood flow to the skin to help warm us - causing the goosebumbs

Mach said:

The if the goosebumps do not warm us enough alone the next stage the body adds is shivers

Mach said:

Cool then I guess I should be thankful that I an extra hairy Italian girl. I still refuse to have hairy legs & arm pits no matter what. It grosses me out
My feet and hands are always the coldest part of my body. Maybe that is because they do not have enough hair on them?

Anywho...the human body is quite amazing.