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MizAvalon said:
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Nyambura said:
Thanks, Caress. I remember Andre Walker writing that healthy hair doesn't relax quickly, so he can tell at a glance which hair will process fast (he considers this a sign of damaged hair) and which hair will 'fight' him (a good thing).
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I don't understand this. How can virgin hair be damaged? Isn't all hair healthy until it's had something done to it? Perhaps he's talking about pressing or coloring making it unhealthy? Otherwise how can new growth be anything but healthy?
Unless of course, you have health issues.
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Hair can be damaged by things other than chemicals and pressing the hair. Here is some info from the web that I thought might be of interest to you:
Which influences affect the hair and what is the result
Damaged hair can have less elasticity than normal hair, on the surface (cuticle) as well as in the fibre stem (cortex). It is rough and straw-like to the touch and is brittle, difficult to comb and tends to split at the ends. The cause can be divided into two groups:
Mechanical damage to the hair shaft
Low-quality combs, brushes, scissors and hair accessories can cause mechanical damage to the hair. The protective cuticle layer becomes increasingly rough and is broken down. The result is often split ends.
If the hair is wet, swollen and soft, combing poses a risk of over-stretching.
Rubbing of the hair during towel-drying is an added burden to the cuticle layer and can lead to over-stretching.
Thermal burdens such as hot blow-drying can lead to rapid evaporation of water and to extreme physical stress on the structure of the hair. Rapid drying makes the hair brittle, unruly and lacking in elasticity.
Chemical damage to the structure of the hair
Damage due to unprofessional colour treatments, bleaches or perms: Such treatments always interfere with the fine chemical structure of the hair. The fibrils of the hair, the interfibrillar substance and the melanin are made up of protein and therefore cannot be influenced selectively. If, for example, an incorrect strength of perm lotion (too strong) is applied in relation to the hair structure or the development time is too long at too high a temperature, the hair swells too much and can be damaged irreversibly.
Damage by UV rays: The damaging effect of sunlight on hair is often underestimated. It leads to a gradual process of oxidation. Especially on wet hair, the high-energy UV rays cause the intensive breakdown of melanin and keratin. The lightening of the pigments due to sunlight causes more structural damage than an equally-strong lightening effect with a high-quality, gentle bleaching agent. Negative changes to the hair structure are particularly accelerated if the hair is dried out more than usual, either by very salty seawater, strongly-chlorinated swimming pool water or climatic influences such as very dry air and wind.
http://www.wella-training-online.com/reference/tronl_en_03_download_5006_0_ml.pdf
Take this info with a grain of salt since this is from Wella's website and Wella sells their own hair care products.
WHAT CAUSES HAIR DAMAGE? Hair damage can be
caused by any of the following:
* Not moisturizing and conditioning regularly.
* Not having your split ends trimmed before they run up each hair shaft.
* Improper application of chemicals, such as over processing.
* Overlapping chemicals when you touch up a color or a perm.
* Using too much heat from a blow dryer, pressing comb or curling iron.
* Sleeping in tight rollers.
* Pulling braids too tightly from the scalp.
* Wearing rubber bands in your hair.
* Not protecting hair from the sun.
* Some medications. Illnesses.
http://www.care-gear.com/care/hair_damage.html
According to
http://www.cwacts.com/events/GlobalBeauty/pdf/ColleenRocafort.pdf : Damaged hair is caused by Rubbing hair while lathering, Towel Drying, Blow Drying, Wet Combing, Brushing, Sunlight, Air Pollutants, Wind, Sea Water, Chlorine in swimming pools, Hair Styling, Curling, Braiding, Tying, Clamping, Combing and rubbing tip to root, Teasing, Stretching or extending, and Chemicals
And according to ivillage.com:
Causes of Hair Damage\
# Chemicals: Bleach, permanent and semipermanent colors, perms and straighteners all work by swelling the cuticle to get underneath it. This leaves the scales roughed up and prone to chipping or coming off altogether. Bleaching , perming and straightening also break down some of the protein bonds in the hair, weakening its structure.
# Physical wear: Friction is responsible for more damage than most people realize. A rough brush or comb (or even a good brush or comb used too much), salt left on the hair after swimming or working out and even pillowcases cause friction. Other physical damage can result from abrasion from rubber bands, barrettes and other accessories. Just-washed hair is especially susceptible to mechanical damage -- when wet, hair loses its ability to stretch and bounce back.
# Heat: Too-hot blow dryers, hot rollers, and curling and straightening implements all can crack cuticles and evaporate water in hair. However, adequate conditioning can insulate hair against low and medium heat.
# Weather: Ultraviolet rays break down some of the protein bonds in hair. A little sun won't have too much of an effect on healthy hair (particularly if it's dark), but it can be pretty tough on chemically processed hair. And wind can rough up cuticles.