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Scientists have uncovered a ‘simple’ way to cure hair loss

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While some celebrities such as Stanley Tucci have accepted their baldness, science will soon have a solution for anyone who is not so interested in saying goodbye to their delicious strands.

From Stanley Tucci to Terry Crews, some men have made baldness their characteristic style.

But if you are not so interested in saying goodbye to those delicious strands, science can now have the answer.

Researchers say that the secret of why humans grow so long hair on the scalp is a hidden “molecular switch.”

That means that treating hair loss could be as “simple” as finding a way to turn on that switch again.

Although long hair on the scalp is weird in the animal kingdom, researchers do not believe that the ability to grow is unique.

Mammals such as orangutans, highland cattle and male lions have the ability to make hair grow.

This suggests that the trigger for hair growth could remain hidden within us and other mammals until the appropriate environmental factor activates it.

The co-author, Professor Sung-Jan Lin, from the University of Singapore, says: “What these examples tell us is that the molecular model to grow the very long hair has always existed, although often in a” silenced “state .

While some celebrities such as Stanley Tucci have accepted their baldness, science will soon have a solution for anyone who is not so interested in saying goodbye to their delicious strands.

A team of researchers examined the evolution of human hair. They believe that long scalp hair emerged for the first time when humans appeared in Africa about 300,000 years ago.

A team of researchers examined the evolution of human hair. They believe that long scalp hair emerged for the first time when humans appeared in Africa about 300,000 years ago.

While it may seem normal, the hair full of a human hair is extremely rare in the animal kingdom.

The co -author, Professor Nina Jablonski, of the Penn State University, says: “Human beings grow extremely long hair on the scalp.

«Similarly, the attributes of the scalp hair (its length, shape, color and fall of the hair) play an essential role in social communication.

“However, despite the importance of having long hair on the scalp, we know very little about how this characteristic of human skin arose and how it regulates.”

Researchers at Penn State University, the University of California, Irvine and the National University of Taiwan investigated the social and biological evolution of human hair.

His findings suggest that long hair probably evolved for the first time when humans first emerged in equatorial Africa about 300,000 years ago as a way to protect our heads from the intense heat of the sun.

Long and well curly hair is an effective sunscreen, so ancient humans did not need to sweat so much to cool off and, therefore, could spend more time without water.

Professor Jablonski says: “This type of hair not only reduced heat exposure but also retained vital water and electrolytes, which could mean the difference between life and death in such extreme conditions.”

The long and curly hair of the scalp is an effective shield against the sun and probably evolved to help humans survive the harsh conditions of Africa.

The long and curly hair of the scalp is an effective shield against the sun and probably evolved to help humans survive the harsh conditions of Africa.

Hair types became more diverse as humans left Africa. Over time, humans began to opt for long hair because it transmitted key signals such as age and sexual maturity (file image)

Hair types became more diverse as humans left Africa. Over time, humans began to opt for long hair because it transmitted key signals such as age and sexual maturity (file image)

Later, humans began to opt for long hair because it transmitted essential signals related to age, sexual maturity, health and social status of the individual.

Only as humans spread outside Africa evolved more types of hair and the hairstyle became more elaborate and diverse.

However, this does not explain why humans could start having long hair on the scalp first.

When observing the animal kingdom, the researchers discovered that the long hair of the scalp is not entirely exclusive to humans.

To some male animals, such as lions, musk oxen and highland cattle, they can grow very long hair in their heads.

This suggests that the possibility of growing long hair is something that many mammals have, but only activated under certain conditions.

The most important thing is that the primates with whom we share a common ancestor, such as the Hamadryas Babuinos, the Orangutans and the Emperor Tites, grows exceptionally long hair.

Since the biological mechanisms that dictate hair growth are the same in all species, researchers suggest that there could be a “molecular switch” that makes a species pass from short to length.

Long hair is not entirely exclusive to the animal kingdom, since primates like the orangutan grow very long hair (in the photo). This suggests that the ability to grow long hair could be something that is latent in mammals until the appropriate conditions activate it.

Long hair is not entirely exclusive to the animal kingdom, since primates like the orangutan grow very long hair (in the photo). This suggests that the ability to grow long hair could be something that is latent in mammals until the appropriate conditions activate it.

In their article, published in the British Journal of Dermatology, they argued that our human ancestors always had this molecular switch integrated into their biology.

However, only when certain biological and environmental conditions were met, such as walking upright on two legs, this molecular program was activated.

Professor Lin says: “When human ancestors developed their ability to grow extremely long hair on the scalp, they probably achieved it through a few genetic adjustments that reactivated a latent program instead of through the evolution of a completely new molecular mechanism “

This understanding could have important consequences for the attempt to find a cure for hair loss.

It is believed that male pattern baldness, or androgenic alopecia, affects between 40 and 50 percent of men around the world.

The condition is caused by a combination of genetic factors and levels of sex hormones that gradually lead to the permanent loss of the hair follicles of the head.

Patients can use the topical minoxidyl treatment, sold as a rogaine, but this can be slow and does not work for all people suffering from hair loss.

Those who do not see improvements with Minoxidil can also take the finasteride oral medication, sold as propecia, which acts by decreasing testosterone flow.

Good news for bald men like Terry Crews (in the photo), researchers say that finding a way to activate the

Good news for bald men like Terry Crews (in the photo), researchers say that finding a way to activate the “molecular switch” of hair could be the key to healing hair loss.

It must be taken continuously once and can be associated with serious side effects such as erectile dysfunction, testicular pain, libido and depression reduction.

However, if long hair growth is caused by a molecular switch, then finding a way to activate it could be the solution that scientists have been looking for.

The study co -author, Professor Maksim Plikus, from the University of California, affirms: “Understand how the hair follicles of the human scalp normally grow very long hairs will result in natural molecular objectives for the most effective therapies against the fall of hair “.

“This knowledge could lead to treatments that help restore hair growth and relieve emotional anguish that often accompanies hair loss.”

Schedule of human evolution

The timeline of human evolution dates back to millions of years. Experts estimate that the family tree is as follows:

55 million years ago – The first primitive primates evolve.

15 million years ago – Hominids (great apes) evolve from the ancestors of the gibon.

7 million years ago – The first gorillas evolve. Later, the lineages of chimpanzees and human diverge.

5.5 million years ago – Ardipithecus, the first ‘protohuman’ shares features with chimpanzees and gorillas

4 million years ago – Ape as the first humans, the Australopitecos appeared. They had brains not bigger than those of a chimpanzee, but other more human characteristics.

3.9-2.9 million years ago – Australoipithecus Afarensis lived in Africa.

2.7 million years ago – Paranthropus, lived in forests and had huge jaws to chew.

2.6 million years ago – Hand axes become the first major technological innovation

2.3 million years ago – It is believed that Homo habilis first appeared in Africa.

1.85 million years ago – The first ‘modern’ hand arises

1.8 million years ago – Homo Ergaster begins to appear in the fossil registry

800,000 years ago – The first humans controlled fire and created homes. Brain size increases rapidly

400,000 years agoOh – Neanderthals begin to appear and spread through Europe and Asia.

300,000 to 200,000 years ago – Homo sapiens – Modern humans – appears in Africa

54,000 to 40,000 years ago – Modern humans arrive in Europe

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