"Study Reveals Genetic Influence on ADHD"

A study of a large number of twins suggests that ADHD behaviors exhibit a notable degree of heritability, with 11% of the variation in children's ADHD behaviors attributed to shared genetic factors between generations. The study indicates that children tend to resemble their parents in levels of impulsiveness, hyperactivity, and inattention due to shared genetic influences rather than shared home environments or effects of parental ADHD on child ADHD. While genetic factors play a significant role, the main cause of ADHD is likely an interplay of unique environmental factors for each child.