How Are the Two Conditions Linked?
Researchers believe the two conditions involve similar changes in neurotransmitter pathways. Neurotransmitters are brain chemicals that act as messengers within the nervous system. They play a role in movement, mood, learning and motivation, among other functions.
Both ADHD and lewy body dementia involve changes in two neurotransmitters, dopamine and acetylcholine. These neurotransmitters in the central nervous system are important for regulating thoughts, memory, attention, movement and the motivation to get things done.
Although the exact changes in neurotransmitter pathways aren’t completely understood, researchers speculate that the two conditions share common origins and features, and adult ADHD may develop into lewy body dementia as a person enters their twilight years.