Final answer:
Separation Anxiety Disorder (SAD) is a psychological condition characterized by excessive anxiety and fear during separation from home or attachment figures. It can have negative effects on social and emotional functioning, family life, and physical health.
Step-by-step explanation:
Separation Anxiety Disorder (SAD) is a psychological condition in which an individual experiences excessive anxiety regarding separation from home or from people to whom the individual has a strong emotional attachment. It is characterized by an excessive display of fear and distress when faced with situations of separation from the home or from a specific attachment figure. SAD may cause significant negative effects within areas of social and emotional functioning, family life, and physical health.