ADHD has biological origins that aren’t yet clearly understood. No single cause of ADHD has been identified but researchers have been exploring a number of possible genetic and environmental links. Studies have shown that many children with ADHD have a close relative who also has the disorder.
Co related factors associated with ADHD:
Brain Injury Attention disorders were caused by brain injury. Some children who have suffered accidents leading to brain injury may show some signs of behavior similar to that of ADHD but only a small percentage of children with ADHD have been found to have suffered a traumatic brain injury.
Food Additives and Sugar It has been suggested that attention disorders are caused by refined sugar or food additives or that symptoms of ADHD are exacerbated by sugar or food additives.
Genetics Attention disorders often run in families, so there are likely to be genetic influences studies indicate that 25 percent of the close relative in the families of ADHD children also have ADHD, whereas the rate is about 5 per cent in the general population. Many studies of twins now show that a strong genetic influence exists in the disorder.
