The degree or extent of the problem may depend on the severity of the condition or if it has been diagnosed. Other conditions, such as depression or sleep disorders, can sometimes exhibit similar symptoms. Attention deficit hyperactive disorder, or ADHD, does strike some children, but the problem is not theirs alone.
Adults suffer from it, too.
Calif. They are among a significant number of adults with ADHD, many of them undiagnosed. Assuming that the number is no greater than 1 percent, that's still more than 2 million people in this country, he says. It continues to be a problem for them as adults, even if they never had it formally diagnosed. That diagnosis didn't come for Lingemann until just a few years ago. Lingemann said she's always had a hard time focusing on tasks and tends to get easily frustrated.