Depression is characterized by a persistent low mood that can affect quality of life. If symptoms usually only occur in the winter months, it may be seasonal affective disorder (SAD), or major ...

Where mood disorders can cause temporary or fluctuating changes in mood, personality disorders cause symptoms that remain consistent over time and across a range of situations. For example, bipolar ...

Depression is not a one-size-fits-all condition. Mental health professionals have long recognized that patients tend to display reasonably distinct clusters of clinical symptoms, and they increasingly ...

Nearly 1.2 billion people worldwide had mental disorders in 2023, reflecting a 95.5% increase since 1990, a new study has found. The largest increases were in anxiety and depression, which were also ...