The reasons why someone has ADHD are still not fully understood. Some researchers say that there may be anatomical reasons for children with ADHD. They may have a 3% decrease in the volume of the brain, particularly in the temporal and frontal lobe of the brain, which is the area responsible for attention and impulse control.[1]
Other factors may include abnormalities in the chemicals in the brain (particularly the dopamine system), genetic factors, social factors in terms of the child’s upbringing and living environment, maternal drug use, premature birth, and exposure to certain chemicals.
Contrary to popular belief, there is no definitive evidence that excessive sugar intake is associated with ADHD. However, there is some evidence that a healthy diet of fruit and vegetables may provide a protective effect.[2]
If you’re worried that your child shows symptoms of ADHD, click here for a quick assessment!
[1] Castellanos, F. X., Lee, P. P., Sharp, W., Jeffries, N. O., Greenstein, D. K., Clasen, L. S., ... & Rapoport, J. L. (2002). Developmental trajectories of brain volume abnormalities in children and adolescents with attention-deficit/hyperactivity disorder. Jama, 288(14), 1740-1748.
[2] Del-Ponte, B., Quinte, G. C., Cruz, S., Grellert, M., & Santos, I. S. (2019). Dietary patterns and attention deficit/hyperactivity disorder (ADHD): a systematic review and meta-analysis. Journal of affective disorders, 252, 160-173.
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