The discomfort is relieved by moving or stimulating the legs. RLS can cause interrupted sleep and fatigue or sleepiness during the day. ADHD is a genetic, biochemical disorder characterized by inattention, restlessness, distractability and impulsivity. Twenty-one of the 33 patients and controls with possible ADHD underwent additional, objective psychological testing.
Researchers have a few theories why the disorders appear to be linked.
D., of Rutgers University in Piscataway, NJ . And being tired from having your sleep disrupted could cause people to be more inattentive. Another theory is that both disorders may be caused by a lack of dopamine in the brain. Dopamine is responsible for transmitting signals within the brain. A lack of dopamine can leave patients unable to control their movements normally.