ADHD hyperactivity syndrome (hyperkinetic syndrome of childhood) is a common childhood behavioral disorders, also known as the slight disorder of brain function or minimal brain function disorder syndrome (minimal brain dysfunction, MBD) or attention deficit disorder (attention deficiency disorder, the ADD). Smart normal or nearly normal in these children but learning, behavioral and emotional defects,
the performance of concentration or attention to short-term,
excessive activity, impulsive, emotional and affected academic performance in the home and school are difficult to get along with others, manipulation on the daily life of parents and teachers find it difficult. This
imbalance due to the additional data reporting the prevalence of about 5 ~ 10% compared to a symphony loss of coordination and harmony. The
country also believes
that a considerable number of school-age children of the patients,
accounting for about 1
~ 10% of of
all primary school boys than girls.
Preterm children with this disease more.
Cause of
ADHD is caused by what? Up to
now not yet understand the following factors:
(1) The children's
mother during pregnancy
or perinatal often have more complications often have a lot of smoking or alcohol history.
(2) genetic factors, such as: children by blood brother, father, etc. the majority of hyperactivity or attention is not concentrated expression; prevalence in single twins twins up to 51% ~ 64%; relatives of alcoholism,
antisocial personality
and hysteria are also more
(3) the findings of the neurotransmitter enzymes often conflicting, but
after a research approach to the etiology of this
disease.
(4) with severe lead poisoning can produce deadly toxic encephalopathy, dementia and other nervous system damage,
but a slight lead poisoning can produce ADHD, has
been inconclusive
