The desire to scratch an ax has evolved for a reason, but we have made an effort to discover why
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Forget what your parents told you, violating an itching can be good for you, increasing the defense against the defense of your body.
Scratching is a paradoxical phenomenon. It can feel nice to run your nails on itch peltTherefore, there is evolutionary reason, that we like to do it and, however, can aggravate eczema and exacerbate the wound or reopen it.
To drill in this dichotomy, And Kaplan At Pittsburgh college, Pennsylvania and his colleagues used allergens called Haptens to influence symptoms like eczema in mouse ears.
The ears of the mice that could be violated will be more swollen and more inflammatory cells They are called neutrophiles – that our body helps to fight the infection, rather than wearing the necklace to his ears.
To see how this strictly affects the skin, researchers examined what was going on within cells. They found that they were drawing spicy-Readed neurons are released as a chemical known as Puzetz substance, and then activated white blood cells called mast cells, encouraging the body to produce more neutrophiles.
“Scratching action shows that it is really important when increasing mast cell behavior,” says Holly Wilkinson Hull University, United Kingdom.
The group also found that the scratch has reduced the amount Staphylococcus aureusInfectations in the skin usually cell bacteria, on the skin of the mouse. This microbe can cause a lot of skin inflammation Manifested as dermatitisKaplan says. “It is enough to switch between 24 hours to change microbioma in measurable ways,” he noted.
However, when the mast has turned the cell, he also turned the path that turned the path, due to a type of dermatitis, which is achieved by the body effectively, which is probably more damage.
“If you are essentially healthy and violated, it’s a good thing,” says Wilkinson. “But there is that tip-tip and if you’re breaching too much, it might be a negative thing.”
Kaplan says that his team has done the preliminary work that shows similar benefits from people.
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