Why is ADHD Being Overlooked and Misdiagnosed as Dementia in Older Adults?

An old friend and Harvard professor of psychiatry once told me that before he would write prescriptions for ADHD adults he required them to begin a regular exercise regimen. He noted that frequently, after really engaging in serious exercise for a few weeks, his patients would come back to him and say they no longer needed medication or only needed a very small dose compared to what they were expecting to need or had been using.