Separation anxiety is a normal stage in an infant's development, as it helps children understand relationships and master their environment. It usually ends around 2 years old, when toddlers begin to understand that a parent may be out of sight right now but will return later. The key feature of separation anxiety disorder, however, is when the anxiety exceeds what might be expected given a person's developmental level.
Children with separation anxiety disorder may cling to their parents excessively, refuse to go to sleep without being near a major attachment figure, be reluctant to attend camp or sleep at friends' homes, or require someone to be with them when they go to another room in their house. Children also commonly experience physical symptoms when they anticipate separation, such as headaches, nausea, and vomiting. Adults with the disorder may be uncomfortable traveling independently, experience nightmares about separating from attachment figures, or be overly concerned about their children or spouse and continuously check on their whereabouts.
When separation does happen, children may seem withdrawn, sad, or have difficulty concentrating on work or play. Depending on the age of the person, they may have a fear of animals, monsters, the dark, burglars, kidnappers, plane travel, or other situations that are perceived as dangerous. Some people become severely homesick when separated from attachment figures, regardless of their age. The experience of separation anxiety disorder is often frustrating for family members and can lead to resentment and conflict in the family.
The human development index parameters are life expectancy, years of schooling, infant mortality rate, maternity mortality rate, people below the poverty line, and per capita income.
Individual citizens have the freedom to take risks and improve their lives.
Explanation:
<u>Most essential reason for the success of capitalism as an economic system is the freedom an individual has to take risks</u> to further their own station in life. The risk taker may or may not become successful but this freedom allows for great social mobility.
<u>Improvement of lives through fiscal development is allowed for in capitalism the best</u> as it ascertains rights in the market to people who can use them correctly to gain advantages for themselves.
I believe the answer is: c understanding constancy and change throughout the lifespan.
In social settings, developmental science research is being done by observing the change that the subjects experience if being put at a certain time of environment over time. Example of its research would be finding out whether there is a correlation between parents income with performance throughout school years.