In order to be its healthiest, your hair needs zinc, iron, vitamin E, omega fatty acids, and biotin. If your diet is high in alcohol consumption and low in nutrients, it will feel dry and rough. An iron deficiency will cause strands to feel brittle and coarse. As you age, the oil glands in your scalp produce much less sebum, which results in coarser-feeling hair. Medication is another big reason for change in hair texture. Anything you put into your body has an impact on how it operates, including painkillers, acne treatments, prescriptions, etc.
This can cause your hair to seem dry and dull. A simple way to correct both of these is to use a hydrating shampoo. These shampoos and conditioners are not only hydrating, bringing life back to your hair, but can also be incredibly restorative. They can work to repair breakage and split ends and strengthen hair against future damage.
While collagen is most known for its ability to keep wrinkles and cellulite at bay, it is also a key player in the heath of your hair. As we age our bodies naturally begin to produce less collagen. Surprisingly this change typically begins around age 25, but as we now know, the hair follicle plays a huge role in the texture of our hair.
Collagen acts as an antioxidant, which your body uses to fight free radicals, or the buildup from environmental pollutants on the scalp, then causing damage and thinning to the hair itself. It also may lead to premature graying. Along with this, too much or a lack of protein in your diet may be the culprit. Protein functions to support fine or medium hair, giving it strength and silkiness.
Surrounding the follicle are the inner and outer sheaths that protect and mold the growing hair shaft. Attached to the outer sheath is the arrector pili which is what causes hair to stand up when frightened. Again, the follicle is the part of the hair that determines hair structure. The cross-sectional shape of the hair determines its texture.
The more circular the hair follicle, the straighter the hair is. The flatter the follicle, the curlier hair is. Also, the circular follicle allows more sebum to travel down the hair than a flatter shaft, giving it a shinier look.
Morphologically, the hair follicle of those with curly hair is elliptical in cross-section and the follicle is an asymmetrical S shape, Eurasians have straighter hair shafts and symmetrical hair follicles, straight, and thick hair shafts are common to East Asians. Another interesting piece of information, it is thought that the similar curly hair structure commonly found in Sub-Saharan Africans and Melanesians evolved convergently [1]. These two groups of people existed independently of one another, but still evolved to have the same hair type, further supporting that there is a useful function of this hair type.
Given that there are different types of hair textures, we would expect there to be different effects on the bearers. Throughout the animal kingdom, common uses for hair include heat insulation, protection, communication, and mating.
The curls of those with kinky air create a layer of space near the scalp that can trap and circulate cool air more easily than those with straight, dense hair. Nina G. Jablonski is an American anthropologist that studies the evolution of skin color.
Though few studies on the effects of hair texture and body temperature have been performed, in a review article published in , Jablonski discusses an experiment that gives credence to the hypothesis that hair texture is important for regulating body temperature. In this study, the experimenters tested how hair style and length affected how much humans sweated. People with shorter and straighter hair sweated less when exposed to high heat [ 1 ].
More studies need to be performed to support this hypothesis. It is also important to note that the idea of sexual selection still cannot be excluded from contributing to the formation of different hair textures.
Surprisingly, little is known about the genetics of hair structure. We do know a few things, though. The TCHH gene is associated with differences in hair texture in people of northern European ancestry. A review paper by Gillian E. Westgate discusses some more genetic links to hair shape [3]. The gene KRT71 is associated with a curly coat in dogs.
Also, certain changes in the gene responsible for the protein Trichohyalin are associated with straighter hair in Europeans. With those 'shingles' flaring open, your hair feels rougher and tangles easily. By using a pH-balancing spray, you seal the cuticle, making it smoother and more manageable, and less vulnerable to pollution. Say you're shampooing your hair every three days or so. Over that time, your hair collects buildup from styling products, dead cells, and pollution.
Together, they leave your hair looking dull and take away its silky feel. Think of how easily your hair absorbs the smell of cigarette smoke—it's amazing what your hair picks up as you move throughout your day. Washing your hair infrequently is fine, as long as you're doing something to remedy the sometimes damaging buildup from your favorite products.
He continues, "Leave the oil on your hair for at least 20 minutes. You can even use a blow-dryer to warm the oil, helping it absorb into each strand and moisturize your hair from the inside out.
Next, wash your hair with a gentle clarifying shampoo. Then use conditioner as usual. Another cause of thinning hair that you likely have no control over is medication. In most of these cases, it's actually a prescription medicine that you should be taking for a medical condition that is the main culprit. While some medications cause only minimal loss, others when combined with the condition you're taking it for can lead to more serious cases.
It's worth discussing your medication use with your physician to see if an alternative medicine would be helpful. But be sure and consult with your doctor before you go making changes on your own. Much like the chemical abuse from relaxers, color treatments, and other processing, heat abuse is another cause of hair thinning and texture changes that's completely preventable.
When heat is the culprit, you usually notice thinning toward the ends of the hair instead of the roots—this is because some women tend to "bump" their ends frequently with curling or flat irons. Along with thinning, you'll probably also notice dryness and brittleness. This is a cause you can easily remedy: just cut back on the heat styling, consider letting your hair air-dry from time to time, and when you do use heat, be sure to use protective products as well.
Although it might not be the first thing that comes to mind, hard water can also contribute to a change in your hair's texture. Hard water has more minerals in it than bottled water and can add to the buildup that may already be present in your hair.
If you can, look into installing a filter in your shower or faucet to "soften" your water.
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