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
Separation anxiety is a normal part of childhood development. It occurs in babies between 8 and 12 months old. It usually disappears around age of 2. Some children have symptoms of separation anxiety during their grade school and teenage years. This condition is called separation anxiety disorder or SAD. Three to four percent of children suffer from SAD (Walker, et al., 2011).