Why does an 8-year-old child always love to jump?

I believe that many parents have encountered situations where their children are very restless and move around, that is, they can't sit still and don't pay attention in class. In fact, this situation belongs to the disease of childhood ADHD, which is also called attention deficit hyperactivity disorder, a common behavioral abnormality in children. So, what is the matter with the 8-year-old child who always loves to jump?

First, why does an 8-year-old child always love to jump? The intelligence of this type of child is normal or basically normal, but there are defects in learning, behavior and emotions, mainly manifested as inattention, short attention span, excessive activity, impulsive emotions, generally poor academic performance, difficulty getting along with others at home and school, and often makes parents and teachers feel helpless in daily life. The prevalence of ADHD is reported to be between 5% and 10% abroad, and domestic surveys show it is above 10%. Boys are more likely to suffer from ADHD than girls. Premature babies and babies born by cesarean section have a higher chance of suffering from ADHD, at approximately 6% or more.

Second, studies have shown that the disorder is related to genetic factors, with a heritability of 0.75-0.91. The mode of inheritance is still unclear and may be multi-gene inheritance. Molecular genetic studies have shown that the disorder is associated with polymorphisms in the dopamine receptor gene. Neurophysiological factors Children with this disorder have a high rate of EEG abnormalities, with the main normal being slow-wave activity. Adding EEG power spectrum analysis registration found that the slow wave power increased, the alpha wave power decreased, and the average frequency decreased. This suggests that children with this disorder have delayed central nervous system maturation or insufficient awakening of the cerebral cortex.

Why does an 8-year-old child always love to jump? Mild brain damage caused by various reasons during pregnancy, perinatal period and after birth may be the main cause of this disorder in some children, but there is no single type of brain damage present in all children with this disorder, nor does it mean that all children with this injury will suffer from the disorder. Moreover, many children who have been in traffic accidents have no evidence of brain damage. Neurochemical factors: Studies have shown that the disorder may be related to central neurotransmitter metabolic disorders and dysfunctions, including: decreased dopamine and adrenaline turnover rates, and dopamine and norepinephrine dysfunction.