Fingers, nails and allergies

Fingers, nails and allergies
Gnawing nails protects from allergies

Children who bite their nails or just playing the fingers in the mouth, subsequently, less likely to develop allergies – this is the conclusion reached by researchers from the University of Otago. They compared the frequency of allergic disorders in people born in 1972 or 1973; on whether they have child bad habits, the authors learned from their parents. It turned out that those who are in the 5, 7, 9 or 11 years old loved the thumb sucking or nail biting in adulthood less likely to become allergic – the difference between them and those who are not sucked and not chewed, 38% versus 49%. A statistical study, that is, the specific physiological mechanisms that would ensure there is a causal relationship between one and the other, say it is impossible. However, it should be noted that the new results confirm the hypothesis of excessive hygiene, according to which too sterile conditions in early life are a bad influence on the development of immunity and that the immune system learned to work properly, she needs to advance someone to a workout and these "training facilities" can get into the body with hands, caught in my mouth.

(Photo socalpixelpusher / www.flickr.com/photos/kogumacd/14068099507.)
The portal magazine
"Science and life"