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
Causes of separation anxiety in dogs Separation anxiety can appear in dogs that are not properly socialized, dogs that have been shuttled from one home to another, dogs that have a more dominant relationship with you and dogs that are naturally nervous:hey are unhappy, they are bored but do not become problems. A dog with separation anxiety is different. When you go to the door to leave, he becomes anxious and may try to leave with you. You manage to get outside and close the door but you can still hear him whining and scratching on the inside.