Parental depression is a research area that focuses on the impact of depression in one or more parents on children and family dynamics. This includes studying how parental depression affects children's emotional and behavioral development, relationships within the family, and parenting practices. Researchers also explore potential risk factors for parental depression, such as parenting stress, marital conflict, and genetic predisposition. Interventions to support families affected by parental depression, such as therapy and support groups, are also a key focus of this research area.