Adult ADHD Raises Dementia Risk
A new study from Taiwan suggests that adults with attention deficit hyperactivity disorder (ADHD) are at higher risk for developing dementia as they age.
Using data from Taiwan's National Health Insurance Research Database, the researchers focused on 675 adults ages 18 to 54 who were diagnosed with ADHD in 2000, and more than 2,000 adults who did not have ADHD. Over a 10-year period, the adults with ADHD were 3.4 times more likely to develop dementia. The underlying connection between the two conditions is unclear, say the researchers, whose study was published in the Journal of Attention Disorders.
ADHD affects up to 12 percent of children worldwide. Some people outgrow the condition, but about 4 percent of U.S. adults have ADHD, according to the National Institutes of Health. The World Health Organization estimates that 47 million people worldwide have some form of dementia.