One well-studied issue in ADHD is a lack of executive functioning.
This 2020 study highlights that the part of the brain responsible for executive function skills such as planning, prioritizing, and self-control is often dysfunctional in people with ADHD.
According to Cappana-Hodge, nearly everybody with ADHD has executive functioning problems.
For example, if someone with ADHD wants to cook a recipe and has to go to the grocery store, they might not remember what’s in the recipe. In this example, she says their brain may not forward think, or inattention might cause them to forget their grocery list.
But Cappana-Hodge emphasizes that "executive function can be learned, and parents can teach their kids."