Every trouble in a child's life is the result of something. Sometimes, simple unawareness in the childish psychology could cause many uncured psychological complexes and troubles. Every children psychologist suggests that it is better to prevent than to cure.
Bad habits
The most popular child's bad habits are nose picking and nails biting. The first one is twice bad as it does not disappear while a child is growing up and could be preserved even in the adulthood. It causes nose bleeding. When you catch your child on nose picking, try to draw his/her attention, play with him/her and in some time a child is to be destructed by himself. Nail biting is to be cured in the similar way. But no punishing, no screaming, no hitting! In such a way you will be able to make the trouble even worse. Do you know why? The matter is that the reason of any bad habit is desire to replace inner negative feelings with something else. A child who is annoyed, stressed or anxious is inclined to the bad habits. It is funny that usually the girls outgrow such habit as nail biting, but the boys keep this habit even if they are grown up.
Another bad habit – finger sucking – is well-known and understandable. It is to disappear since four years old, but even for this short period this habit could be harmful, because it causes the teeth wrong forming or falling out. What to do? Try to explain why it is bad or suggest alternative affair, ask a child to help you about the house, point out another event to complete. An idea that finger sucking is a result of stress or worries seems to be wrong, as some kids are sucking their fingers (or elbows) while they are sleeping or listening to calm music.
Hair twirling is popular among the girls, but it is not a bad habit until a girl starts "eating" her hair tail. Calm explanation how to stop it is to be effective.