People with ADHD exhibit structural variations in multiple areas of the brain, including the cerebellum,
corpus striatum, and prefrontal cortex: A large portion of the frontal lobe which is mostly responsible for executive functions like working memory, task initiation, impulse control, etc
The gene called methylenetetrahydrofolate reductase(abbreviated
MTHFR), which codes for an enzyme of the same name, is often mutated in people with ADHD, and the result of
the mutation is limited ability to process folic acid(B9), which later interrupts production of dopamine and
serotonin.
Delayed Sleep Phase Syndrome is common in people with ADHD, causing them to fall asleep an average of 90 minutes later than people without ADHD. This can increase ADHD symptoms such as poor focus and delayed processing speeds.
Decreased production of Dopamine, Serotonin, and Norepinephrine are heavily responsible for the pathophysiology of ADHD. Minimal quantities of these neurotransmitters are what creates the characteristic struggles with Executive Function that are hallmark symptoms of ADHD.
Attention Deficit Hyperactivity Disorder is a neurobehavioral disorder recognized by symptoms of hyperactivity, impulsivity, and developmentally inappropriate inattention.