Does your hair turn gray from fear? Detailed answer

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Does your hair turn gray from fear? Detailed answer

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Does your hair turn gray from fear?

Yes, they sit. But it is rather unclear how and why this happens. We still cannot even fully explain why older people turn gray! But let's think about it anyway.

Hair is a skin formation. Their roots are in the skin, letting out, like an onion, "sprouts" upwards. As soon as the hair cells appear above the skin as they grow, they change and become horny. From the outer end of the cells are constantly multiplying, on top of some others appear.

Among the cells of the hair roots there are those that contain pigment. They also multiply and appear higher and higher. As the hair shaft grows, they eventually die, and the pigment granules are destroyed.

The horny substance of the hair is yellow, while the pigment granules are from red to black-brown. This explains the various shades of hair that we know, from white to black.

One of the explanations for the appearance of gray hair is that with age, due to illness, anxiety, a strong fright, the pigment becomes less and the hair color turns gray. Another explanation is that air bubbles begin to replace pigment granules due to nervous stress and negative emotions. But the mechanism of this phenomenon is still unknown to us.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

In which country is a separate concrete bunker built for each family?

In 1967, the ruler of socialist Albania, Enver Hoxha, launched a program of general "bunkerization" of the country in case of war. It operated for almost 20 years, during which time more than 700 concrete bunkers were built - one for each family. On average, there were 24 bunkers for every square kilometer of Albanian territory. Today, they have been partially dismantled in the cities, but most remain standing and are the most recognizable feature of the Albanian landscape. Some bunkers have been converted into cafes or mini-hotels, and teenagers have found their most popular use for dates.

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Human hearing depends on hands 29.10.2012

A new study on the connection between motor skills and perception shows that the right and left hemispheres of the brain hear differently. This study, conducted by scientists from Georgetown University, not only uncovers another brain mystery, but may also help treat speech disorders in children and people who have had a stroke. The study demonstrates for the first time a difference in the processing of audio information by the right and left hemispheres of the brain, although a number of experiments have already pointed to this feature.

The scientists found 24 volunteers and let them listen to fast and slow-changing sounds and background noises. The subjects were then asked to indicate by pressing a button whether they heard sounds hidden in the background noise or not. In this case, each volunteer had to use the right hand to press the button for the first 20 sounds, and then the left, and so on in turn.

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The fact is really amazing. Imagine that you are listening to a speech at a rally and are waving a flag at the same time. So, the perception of speech will differ depending on which hand you hold the flag in. Ultimately, the scientists hope that understanding the organization of human sound perception and its interaction with the motor system will help explain why speech is processed in the left hemisphere and how to deal with speech impairments.

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