Saturday , May 8 2021

Imagine scratching your head to your brain

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Charter The presence of itching is an emotional experience and is frustrating – especially if scratching makes it worse.

But there are a number of abnormalities that actually trigger itching unnoticed and without feeling comfortable.

In one case, a woman suffered severe itching on the scalp that she scratched into her brain.

So how does this disorder arise?

All of this is due to the reason we talked in the first place, because this video explains from This Ok To Be Smart

Itching is a very strange sensation and scientists still don't understand it.

Itchy sensation is known as pruritus, and is thought to have evolved as a way to protect the skin – our largest organ – from parasites and accumulation of dead cells.

After all, all of our other organs safely enter our bodies, where they are fully protected by the immune system.

But our skin is our first line of defense, and it's always in touch with the outside world, so it makes sense that it has developed some unique ways to stay intact.

This also explains why infectious itching – returns to the Paleolithic era, when we all live nearby – if you see tribal members scratching themselves, it makes sense to start scratching too, to avoid being bitten or infected with anything that might bother them.

But that does not explain why itching produces a unique and crazy sensation.

As the video explains, even a decade ago, scientists really thought that itching was just another type of pain, using the same receptors on the skin that convey chemical and electrical messages to the top of the spine and to the brain to tell they hurt something.

But we now know that itching has its own electrical circuit, which contains its own chemicals and cells.

While we all have different responses to pain, we share a comprehensive itch response.


Scratching seems very good because it causes low level pain signals to hit the brain and take itchy signals to provide comfort.

This is why tablets or slaps where itching can work too.

Unfortunately, some chemicals that make us relax – including serotonin – can facilitate itching signal reactivation.

For this reason it is common to scratch to make you feel itchy, and release a vicious cycle called the itchy cycle.

Damage to the nerves involved in this cycle can cause uncontrollable itching, without any interference, called pruritus.

There are many reasons why, and sometimes researchers don't know why.

This can be caused by a viral infection that affects the nervous system, such as post-itching, which can cause shingles.

There are also cases such as itching (bronchialadial pruritus), which are caused by nerves limited to the neck.

And (aquagenic pruritus), which itches after contact with water.

Some cases have been linked to a rare condition in which the body has many red blood cells.

All of these disorders can cause people to suffer frustrating itching, often for no apparent reason, and perhaps without comfort.

In a severe case study, a 39-year-old woman suffered severe itching after herpes, but there was no neuropathic pain after an injury to my eye area.

Within a year, his front skull was painfully scratched and engraved in his brain.

Sensory tests and cuts from scaly and normal scalp are done to develop the initial hypothesis about the mechanism of neuropathic itching.

The quantity of skin biopsy on biopsy of PGP9.5 immunosuppressed skin reveals a 96% loss of skin irritation in the itchy area.

Quantitative sensory tests show severe damage to most sensory receptors except itching.

These data indicate that in these patients, the following severe itching is associated with loss of peripheral sensory neurons.

Possible mechanisms for this condition are excessive electrical activity in pre-central neurons that are specialized in itching, selective conservation of the peripheral itchy fibers closest to the unaffected skin, and / or imbalance between second-order sensory excitation and inhibition of neurons.

What can you do to relieve itching?

You can see the video above to learn more, but the good news is that there are many treatments that you can try.

In addition, scientists are still learning more about unique and unique itch responses, so that in the future we can finally stop the uncontrollable itching.

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