Genograms offer a plethora of information about the families depicted. For starters, they include fundamental information common in family trees, such as each individual's name, gender, date of birth, and date of death. Education, employment, key life events, chronic diseases, social behaviors, type of familial ties, emotional relationships, and social interactions are examples of additional data. Some genograms also include information about problems that run in the family, such as alcoholism, depression, diseases, partnerships, and living circumstances. Because there are no restrictions on what sort of data may be included, genograms can vary greatly.