How hair color and texture change with age electricity through wood

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A single hair lives approximately four to five years. Given that hair grows on average a little less than half an inch per month, hair that is 12 inches in length has seen almost three years of ultraviolet light, friction from brushing, heat from blow dryers, curling irons, and flat irons, and chemical exposure through coloring, perming, or straightening.

It’s no wonder that hair wear and tear or weathering results. Cuticle cells become raised and softened, making the hair appear rougher and more prone to breakage. Over time, hair follicles themselves gradually produce thinner, smaller hairs, or none at all. This is referred to as senescent alopecia, although it may simply be a part of the natural aging process. What You Can Do

The anti-aging business is a multi-billion dollar industry. There are many products that claim to counteract the effects of aging on hair. They include humectants, which bind moisture to the cuticle, making it appear smoother, and hair conditioners that seal the cuticle. There are also products that provide hair with antioxidants and protect against UV light. Since hair is technically dead after it emerges from the follicle, these cosmetic fixes tend to work by modifying the appearance of each strand rather than changing the structure.

In addition to incorporating the use of some of the aforementioned products, you should also avoid excessive use of heat on your hair. Limit the use of hot tools like curling irons and flat irons. When blow-drying, keep the dryer at least 6 to 12 inches away from your head.

The exact process of going gray is not well understood, although it is known that hair turns gray when melanin—the pigment that gives your hair and skin color—stops being produced. Generally, the lighter your skin, the sooner your hair will turn gray. Caucasians typically start to gray in their early 30s. It often occurs 10 years later for those with darker skin.

The onset of graying hair is largely determined by genetics. Dermatology researcher Ralph Trueb noted in his paper " The Aging of Hair" that 50 percent of people by age 50 will have 50 percent gray hair, regardless of sex and initial hair color. Body hair—eyebrows, pubic hair, and chest hair—usually grays much later than the hair on the scalp.

One theory chalks up the cause of graying to oxidative stress, one of the major theories of aging. Oxidative stress is a condition that occurs when an excess of free radicals are produced as new hairs are formed, which subsequently damages the pigment-creating cellular structures within the follicle. This process may also explain why many people notice that their hair becomes coarser and tougher to manage as it grays since the cells that create melanin are closely connected to the ones that build the keratin hair shaft. What You Can Do

If letting your hair go au naturel doesn’t appeal to you, you have a variety of coloring options. Reverse highlights put streaks of darker color back into gray hair. Permanent dyes work by creating colored molecules within the hair shaft and can withstand repeated washing. Semi-permanent colors can last between six and 10 shampoos, as they are made up of small molecules that penetrate the hair cuticle.