WebMD -- April 20, 2011 -- Babies who cry excessively and have difficulty sleeping and feeding may be at increased risk for behavioral problems during childhood, including attention deficit hyperactivity disorder (ADHD), a study shows. Close to 20% of all babies show signs of “regulatory issues” such as persistent crying, sleeping issues, and feeding problems during the first year of life. Most of the time these symptoms are transient and infants adjust by the time they reach preschool.
