why do we lose hair as we age
As we get older, one of the biggest fears many people have is of losing all the hair on their head. In humans, males tend to lose their hair and go bald much sooner and
than females, and baldness remedies and prevention has become a major industry. However, the rest of the hair on our body doesn t seem to suffer the same fate. Most men have arm hair, leg hair, and everywhere-else hair well into their old ages, once the hair on their head is long gone. Why is there such an unfair balance in men? Well, the truth is, humansPdo lose their body hair, but based on the different genetic, physical, and chemical processes in the body, it s hard for us to notice! Human beings evolved from primates (monkeys), which are mammals, just like us. It s important to remember that all mammals are covered in body hair (mostly in the form of fur). Humans, however, aren t covered in fur for a number of, namely that it makes it harder to cool the body. Our ancient ancestors, traveling long distances (perhaps while persistence hunting) in the hot summer sun, would have needed a way to cool their bodies as they moved. Sweating is the most effective form, which happens in the skin, which fur blocks. Therefore, humans evolvedPto fill their mobile needs by losing the fur over the course of generations. That being said, primates and other mammals do experience thinning of the hair or hair loss, and in some primate species, they experience something akin to balding. However, the hair on human heads has stuck around over millions of years for a different reason. Since the head is the part of the body most commonly exposed to sunlight (and the Equatorial sun of Africa while we were first evolving, no less), hair protects the scalp from overheating, and also reflects much of the UV radiation away from the head. The hair on the top of the head, the sides of the head, and the rest of the body are all slightly different, but we ll get into that in the next section So Why Do We Lose Our Hair?
The hair follicles on our head go through what are known as growth cycles, where hair is grown and extended from a single site for. At that point, the hair will stop growing and fall out. That particular follicle will then take a break for a while, before restarting the entire process. most hair follicles can go through a handful of these growth cycles over the course of a lifetime. However, there is strong evidence that genetics determine the longevity of your hair, a subject that is closely connected to DHT. DHT stands for dihydrotestosterone, a powerful sexPsteroid. Testosterone actually converts into DHT as we begin to age and mature, since this steroid is important for male sexual development, libido, reproduction, etc. However, DHT affects hair follicles on the top of the head, essentially altering the protein makeup, which shuts down those follicles prematurely. This is why so many men suffer from male pattern baldness; it is not that we continue producing DHT as we age; in fact, the amount in our body peaks in our 20s and early 30s, but our hair becomes more sensitive to the effect of the steroid over time. This sex-linked characteristic of baldness (genetically located on the X-chromosome) appears to be derived from the genetic makeup of our mother s father. The frustrating thing is that body hair never seems to fall out, but some people try to do everything possible to hide their baldness from silly toupees to experimental hair growth products. Now, the key word there is SEEMS. P You ll have likely noticed that most of the hair on your body grows to a certain length and then stops, which is why you never need to get a haircut on your forearms! This has led to the belief that our body hair is permanent, but in fact, we lose our body hair just as frequently as the hair on our head, if not more often! The difference is that body hair is miniaturized, less dense, and spread across our body rather evenly.
In other words, when we lose body hair, it s much harder to notice, and the growth cycles of body hair follicles are also unlimited. Body hair will grow to a certain length, stop, and then fall out, only to grow back again. You might find long strands of hair in your brush and freak out that you re getting old, but you re likely losing about 100 hairs fromPyour body every day too; you just don t worry about it as much as your empty scalp! All hair follicles eventually get older and stop working, which is why our body hair does thin over time, but this process is much slower in body hairPfollicles than on the head, based on their slightly different protein makeup and varied susceptibility to environmental and steroidal effects. It s highly unlikely that you ll live to the point where you re completely bald from head to toe, but if you lived long enough, it could happen! One of life's oldest and most frequent questions we ask ourselves - why is my hair starting to fall out the older I get? Typically this question is usually asked at an earlier stage in life by men as opposed to women, but nonetheless it is certainly a question that women ask themselves as they go through life too. Inevitably when hair loss starts to occur we often will look for solutions to stem its onset from hair dye to hair growth shampoo, which can in many cases be very effective. The reasons for loss as we get older are plentiful, in any many cases it is just a natural sign that we are getting older. For anyone, a little thinning of the hair is only natural when they get old, as over time the body simply slows down its rate of producing hair follicles and hair follicles just are not as productive as they once were in a person's youth. For some people however, the onset of hair loss can happen earlier than they would have liked, and at an age where they are still relatively young adults. Some reasons for this can be genetic and often lie in a person's family tree history.
Sometimes a person's parents or grandparents might have lost hair early in their adult lives, and typically this trait might occur in their offspring or may from time to time skip a generation. This would typically be the most common reason for hair loss. As men get older they may notice a receding hair line start to develop, which overtime may turn to bald patches and eventually full baldness. In women the process is usually a little more subtle and a little less drastic, but nonetheless still affects many women. A good hair growth shampoo can often be a good remedy for natural hair loss as we get older. Often there can be medical reasons to explain why a person is experiencing hair loss outside of getting older. Hair loss can be a side effect of stress, being ill or due to medication. As we get older the natural loss of hair is actually referred to in men as 'male pattern baldness' and in women it is referred to as 'female pattern hair loss'. From a scientific perspective the reason this natural hair loss occurs in men and women as they get older is often down to the hormone - testosterone. As is common knowledge men produce a lot of testosterone in comparison to women who produce very little of the hormone, for different biological reasons. Testosterone can be converted to dihydrotestosterone (DHT) with the help of the enzyme 5-alpha-reductase. DHT reduces hair follicles causing the membranes in the scalp to get thicker, become inelastic and cause problems in blood flow. This causes the hair follicles to fail. As a result when hair starts to fall out it does not get replaced with new follicles. As men produce more testosterone than women they experience more hair loss as they get older. There are many ways to help slow down the process of hair loss as one gets older and possibly one the most effective and cheapest overall solutions oftentimes is to get a good quality from a reputable provider.
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