aking Care of Your Hair


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Taking Care of Your Hair

We have about 100,000 hairs on our heads. Each hair shaft has three layers, with the cuticle, or outside layer, protecting the two inner layers.



Shiny hair is a sign of health because the layers of the cuticle lie
flat and reflect light. When the scales of the cuticle lie flat they
overlap tightly, so the inner layers are well protected from heat, sun,
chlorine, and all the other hazards that can come from living in our
environment. When hair is damaged, though, the scales may separate and
hair can become dry. Because the scales on dry hair don't protect the
inner two layers as well, hair can break and look dull.

The type of hair a person has — whether it's straight or curly — can also affect how shiny it is. Sebum,
which is the natural oil on the hair, covers straight hair better than
curly hair, which is why straight hair can appear shinier.

Depending how long a person's hair is or how fast it grows, the end
of each hair shaft can be a couple of years old. So the hair at the end
of the shaft could have survived a few summers of scorching sun and
saltwater and winters of cold, dry air. How well you care for your hair
from the time it emerges from the root plays a role in how healthy it
looks.Caring for Hair



How you take care of your hair depends on the type of hair you have, your lifestyle, and how you style your hair.

Your hair type. People with dry, curly hair have
different hair care needs than people with straight, fine hair. But all
hair needs to be treated gently, especially when it's wet. Wet hair can
stretch, making it more vulnerable to breakage or cuticle damage. That's
why using a hot blow-dryer (or other heat styling products) on very wet
hair can damage it.

Some people find that their hair gets oily in their teen years. That's because the hair follicles contain sebaceous glands
that make sebum, which moisturizes the hair and skin. During
adolescence, the sebaceous glands may become overactive, producing more
oil than needed. As with acne, oily hair is usually a temporary part of
puberty.

Many teens care for oily hair by washing it once a day — or more if
they're active. As long as you treat your hair gently when it's wet,
frequent washing shouldn't harm it. If you have acne, it's a good idea
to keep the hair around your face clean so hair oils don't clog your
pores.

If you're washing your hair every day or more, it may be better to
choose a mild shampoo instead of a shampoo designed for oily hair. For
some people — especially people with fine, fragile, or combination hair
(hair that's oily at the crown but dry on the ends) — shampoos for oily
hair can be too harsh. If you have oily hair and want to use a
conditioner, choose one that's made for oily hair.

If your hair is dry, it's a good idea to wash it less frequently.
Some people only need to wash their hair once a week — and that's fine.
Many people who have curly hair also have dry hair. Curly and dry hair
types are usually more fragile than straight hair, so you'll need to be
especially careful about using heat styling products. Shampoos made for
dry hair and hair conditioners can help.

Your activity level and interests. Do you play
sports or spend a lot of time at the beach? These kinds of things can
affect your hair. For example, if you're an athlete with oily hair, you
may want to wash your hair after working up a sweat during practice and
games. But if you're a lifeguard or a swimmer, sun and saltwater (or the
chlorine in pool water) can dry your hair out, no matter what your hair
type. If you're exposed to sun, wind, or other elements, you may want
to use a shampoo designed for dry hair or use a conditioner. It's also a
good idea to wear a hat to protect your hair when you're outdoors.

Your hairstyle. Heat styling products like curling
and straightening irons can dry out even oily hair if they're used too
much. Follow the instructions carefully, and don't use them on wet hair
or high settings, and give your hair a vacation from styling once in a
while. Ask your hair stylist or dermatologist for advice on using heat
styling products.

Chemical treatments can also harm hair if they're not used properly.
If you decide you want a chemical treatment to color, straighten, or
curl your hair, it's best to trust the job to professionals. Stylists
who are trained in applying chemicals to hair will be able to evaluate
your hair type and decide which chemicals will work best for you.

Here are some things to be aware of when getting chemical treatments:

• Relaxers. Relaxers (straighteners) work by breaking
  chemical bonds in curly hair. Relaxers containing lye can cause skin
  irritation and hair breakage. Although "no lye" relaxers may cause less
  irritation, both types of relaxers can cause problems if they are used
  in the wrong way (for example, if they're mixed incorrectly or left on
  the hair for too long). Scratching, brushing, or combing your hair right
  before a chemical relaxing treatment can increase these risks. And
  don't use relaxers — or any hair treatment — if your scalp is irritated.
  
  If you decide to keep straightening your hair, you'll need to wait at
  least 6 weeks before your next treatment to protect your hair. Relaxers
  can cause hair breakage when used over a period of time, even when
  they're used properly. Using blow-dryers, curling or straightening
  irons, or color on chemically relaxed hair can also increase the risk of
  damage.
  
• Perms. Perms take straight hair and make it curly. The risks are similar to those associated with relaxers.
  
• Color. There are two types of color: permanent
  (which means the color stays in your hair until it grows out) and
  semi-permanent (the color washes out after a while). Some semi-permanent
  coloring treatments, like henna, are fairly safe and easy to use at
  home. Some people get a condition called contact dermatitis (an allergic
  reaction with a rash) from henna and other "natural" products, so be
  sure to test a small area first.
  
  Other color treatments — especially permanent treatments — can cause
  hair loss, burning, redness, and irritation. A few types of coloring
  treatments can cause allergic reactions in certain people, and in rare
  cases these can be very serious. So talk to your stylist if you are
  worried that you may be sensitive to the products. Also, talk to your
  stylist about doing a patch test before using a product. And never use
  hair dyes on your eyelashes or eyebrows.
  

Regular haircuts are one of the best ways to help keep hair healthy.
Even if you have long hair or you're trying to grow your hair, a haircut
can help protect the ends of your hair from splitting and damage. In
fact, cutting may actually help your hair grow better because it's
healthy and not breaking off.Dealing With Hair Problems



Here are some common hair problems — and tips on how to deal with them.

Dandruff



Dandruff — or flakes of dead skin — can be noticeable in a person's
hair and on clothing. No one really knows what causes dandruff, although
recent studies seem to show that it may be caused by a type of fungus.

Dandruff isn't contagious or dangerous. Over-the-counter shampoos
containing salicylic acid, zinc, tars, or selenium sulfide can reduce
dandruff flakes. When shampooing, massage your scalp (but don't scratch)
for at least 5 minutes, loosening the flakes with your fingers. Rinse
your hair well after washing. If your dandruff doesn't improve, see your
doctor. He or she may prescribe a prescription shampoo and possibly a
lotion or liquid to rub into your scalp.

Hair Breakage



Hair can break when points in the hair thicken or weaken. Sometimes
this happens near the scalp so a person's hair never grows very long.
When hairs break at the ends, they're called "split ends," and the
splits can travel up the hair shaft.

A major cause of hair breakage is improper use of chemical hair
treatments, like the treatments described above. But brushing or combing
hair too frequently or in the wrong way (such as using a fine-toothed
comb on very thick, curly hair or teasing hair) can lead to breakage.
Hair extensions and braids can also cause breakage. Leaving them in too
long or pulling them out without professional help can cause hair and
scalp damage or even hair loss.

Sometimes hair breakage and dry, brittle hair are signs of a medical
problem, such as hypothyroidism or an eating disorder. If your hair is
breaking even though you don't treat it with chemicals or other styling
products, see a doctor.

Hair Loss (Alopecia)



It's normal for everyone to lose some hair. In fact, we lose about
100 hairs each day as old hairs fall out and are replaced with new ones.
With hair loss, though, hair thins at a rate that can't be replaced.
When hair falls out and isn't replaced by new hair, a person can become
bald or have bald patches. Hair loss
can be temporary or permanent, depending on the cause. If changing your
hairstyle or other treatment doesn't help, see a doctor. He or she may
prescribe a drug to slow or stop hair loss and to help hair grow.

As with the rest of our bodies, hair is healthiest when we eat right, exercise, and protect it from too much sun.