Affective disorders, also known as mood disorders, are mental health conditions characterized by significant disturbances in a person`s emotional state. These disorders primarily include depression, bipolar disorder, and related conditions that affect mood, energy levels, and daily functioning. Symptoms can range from persistent sadness and lack of interest in activities to extreme mood swings that alternate between mania and depression. Affective disorders can impact a person`s thoughts, behavior, physical health, and relationships, but many are treatable with a combination of medication, therapy, and lifestyle changes.