Separation anxiety disorder is a mental health disorder that usually begins in childhood and is characterized by worrying that is out of proportion to the situation of temporarily leaving home or otherwise separating from loved ones. Approximately 4%-5% of children and adolescents suffer from separation anxiety disorder.
The symptoms of separation anxiety includes persistently and excessively fearful or reluctant to be alone or without major attachment figures at home or without significant adults in other settings, persistent reluctance or refusal to go to sleep without being near a near a major attachment figure or to sleep away from home, repeated nightmares involving the theme of separation, repeated complaints of physical symptoms (such as headaches, stomachaches, nausea, or vomiting) when separation from major attachment figures occurs or is anticipated, repeated nightmares about being separated from the people who are important to the sufferer.
There is conflicting evidence linking ADHD with socioeconomic status. While one study found a twofold increase in ADHD for the poorest children when compared with the wealthiest children, two other studies found no association between family income or education and rates of ADHD. Some recent, studies have shown lower rates of ADHD among Mexican-Americans residing in the US,60 and among Asian children in the UK