Many people with ADHD constantly seek stimulation. This isn’t just a personality trait. Research suggests this happens because of the structure and chemical makeup of the ADHD brain.
The parts of the brain that help people stay focused and not get bored are “underaroused.” They don’t fire as efficiently as those of other people. The brain may also not properly activate certain chemicals that make activities satisfying. So people feel less encouraged to stay focused.
There’s another factor at play. People with ADHD have trouble with skills called executive function. They often brim with exciting ideas but struggle with the planning, organizing, and problem-solving skills to do them.
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ADHD and the brain