ADHD Now, Dementia Later?

Adults With ADHD Symptoms Have Tripled Risk of Dementia Later, Study Finds

Jan. 20, 2011 — Adults with symptoms of ADHD, or attention deficit hyperactivity disorder, are more than three times as likely as other adults to develop a form of dementia later in life, according to new research from Argentina.

”We found a higher risk of dementia with Lewy bodies in patients with preceding adult ADHD symptoms,” write the researchers from Hospital Italiano Buenos Aires. The study is published in the European Journal of Neurology.

Lewy body dementia (LBD) affects about 1.3 million people in the U.S., according to the Lewy Body Dementia Association. Lewy bodies is the name given to the abnormal protein deposits that disrupt the brain’s normal functioning.

The symptoms include cognitive impairment, like the more well-known dementia, Alzheimer’s disease. However, in the Lewy body form, patients can also have visual hallucinations, fluctuation in cognition — sometimes appearing fine, other times not — and motor abnormalities similar to those in Parkinson’s disease patients.

But a U.S.-based expert cautions that the study found an association between ADHD symptoms and the dementia, not cause and effect. “It may be that both of these disorders are linked to some other risk factor that is common for both,” says James B. Leverenz, MD, chair of the Lewy Body Dementia Association’s scientific advisory council and professor of neurology and psychiatry and behavioral sciences at the University of Washington, Seattle. He reviewed the study for WebMD.

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Film maker. Video game historian. Will put more in here this section soon!
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