### covering | hair:

Eyelash
* Some eyelashs are part of eyelids
* also keep sweat out of the eye.
* apply only to the females.
* are hair
  - short, thick, and curly
  - tinted for a darker or fuller look
  - very important in protecting the eye from dust and debris
* keep dust and dirt from getting into the eyes.
* protect eyes from wind-blown sand
  - the eyes from foreign objects, and nostril hairs filter air and remove debris
+ Eyelid
  * An 'eyelid' is a thin piece of skin that covers and protects the eye. It is one of the thinnest areas of skin on a persons body. People do this willingly or without thinking. The human eyelid has a row of eyelashes that help protect the eye from dust and other small objects. Eyelashes also keep sweat out of the eye. Eyelids regularly spread tears and other secretions on the surface of the eye to keep it moist. The cornea is one part of the eye that must be kept moist. Eyelids keep the eyes from drying out when asleep. Also, the blink reflex protects the eye from things touching it.

### covering | hair:

Facial hair
* can prevent a good seal, even if it is only one day's stubble.
* comes in spurts and it's almost never symmetrical.
* extends down to their lips protecting the muzzle when grazing in snow.
* is also a sign of virilization
  - body hair
  - often the last male sexual characteristic to develop
  - short, while the long, rough hair on the crown and shoulders forms a hood
* is very short and gray
  - similar to hair in other parts of the body
* provides more hair lines to process.
* sign of puberty in men.

Fine hair
* begins growing on the head, eyebrows and eyelashes
  - to grow all over the body
* is seen over most of the skin.
* populate the surface of the plant's roots.

Gray hair
* has to do with a lack of nutrients.
* is coarser and dryer than other types of hair
  - formed when the signal to produce color slows or stops
  - something that is fairly dull
* sign of distinction
  - growing old

Guard hair
* Most guard hair is part of undercoats.
* are erectile for heat regulation
  - hollow like straws
  - the continuously growing dark hairs that create the long, shaggy coat
* gives the color and the shape of the animal.
* is hair.
* is part of fur
  - the longer, coarse, harsh hair that sheds water and protects the fur fiber
* protect the fur, while the fur insulates the mammal.

Hair style
* are a work of art in Senegal.
* evolve and change over the years, even as creativity reaches new frontiers.
* seem to go in cycles.
* vary with age, and with ethnic identity.

Hair testing
* appears to be a better determinant of long-term drug consumption.
* is effective in detecting regular than occasional marijuana use.

Hair transplantation
* cost-competitive solution for hair loss.
* is an effective and permanent solution for hair loss
  - office procedure that takes approximately three to six hours
* very safe, relatively minor surgical procedure.

Haircut
* are cuts
  - grooming
* happen when tunnel vision sets in.
* includes corpi
  - sections
  - widow's peaks

Hairstyle
* are a major part of American fashion and are always changing
  - used to make a statement, baldness is abhorred
* change and grow, just like people.

Healthy hair
* begins with healthy skin.
* is crucial to our psychological well-being
  - strong, about equivalent to copper wire of the same diameter
* mirror of both good nutrition and common sense.
* natural adjunct to a really healthy person.
* requires daily attention
  - iron, zinc, calcium, magnesium and boron
  - minerals and vitamins

Horse hair
* are coarse hairs, of course.
* is best for lines, sheep hair for softness
  - tied to the ends of the bow