The U.S. Census Bureau expects the U.S.A. population to grow to reach these estimates over the next few decades: 1  2010 - 307,745,538. 2  2020 - 336,031,546. 3  2030 - 363,811,435. 4  2040 - 392,172,658. 5  2043 - 400,527,776 (the year of 400 million)
Symptoms of separation anxiety disorder include the following: Subjective feeling of anxiety; Unrealistic worries about the safety of loved ones; Reluctance to fall asleep if not near the primary attachment figure; Excessive dismay (for example, tantrums) if separation from the primary attachment figure is imminent; Nightmares with separation-related themes
Only occasional bouts of separation anxiety then occur when the child is faced with new situations, such as starting preschool or the addition of a new baby to the family. Before about six months of age, infants show little special attachment to a particular caregiver and no distress at being left alone.arents are frequently frustrated by the intensity of their child's separation anxiety while an infant and toddler and believe that something is wrong with their child rather than accepting this natural stage of development. In school-age children, refusal to attend school due to separation anxiety disorder is common.