Why do we bite nails?

Not only unhygienic, nail damage, nail biting habits also cause many other injuries. Many psychological studies show that this behavior is considered an obsessive-compulsive disorder and is related to the following factors.

Starting from the heart

Austrian psychologist Sigmund Freud blamed this behavior for the development of sexual psychology at the stage of the mouth (the period when babies have the greatest pleasure through sucking and sucking on their mouths. close objects).

Not only unsanitary, nail damage, nail biting habits cause many other injuries - (Photo: Shutterstock)

With Freud's doctrine, when entering the stage from 5 to 8 months of age, teeth grow and itchy. If the need to bite something for the itch is not met, plus the baby may be weaned too early, when growing up, this individual tends to develop a personality that likes to quarrel with oral expression currently like to bite nails.

Meanwhile, other therapists suggest nail biting may be due to internal hostility or anxiety, anxiety. Although these arguments and speculations have not been clearly proven, most people accept these hypotheses.

Habit

According to some researchers, nail biting is just a result of random changes that affect some people to create bad habits. Actually putting your fingers in your mouth is easy.

According to BBC, it is one of the basic human reactions: that is eating and this behavior is controlled by some circuits in the brain, which means it can quickly develop into an automatic reaction. In addition, for some people the idea of ​​nail biting is a way to keep hygiene extremely interesting.

In short, nail biting is not a personality trait, it's just a built-in behavior in the brain from birth and habit.