More Than 15 Percent of U.S. Kids Have a Cognitive Disorder

Researchers surveyed parents of 2- to 8-year-olds nationwide. About 15 percent of the parents reported their child was diagnosed with at least one mental, behavioral or developmental disorder.

Some had attention deficit hyperactivity disorder, anxiety, depression or autism. Others were diagnosed with delays in language, speech or learning.

Findings were published in the Morbidity and Mortality Weekly Report. Lack of stable medical support placed children at even greater risk.

3 Early Warning Signs to Watch For:

• Sudden, drastic changes in behavior or personality
• Feeling very sad for more than two weeks
• Intense worries or overwhelming fear for no apparent reason