Hypersomnia is a common but overlooked sleep issue in bipolar disorder. Learn how excessive sleep affects mood stability, ...

For some, this mood change is temporary and easily managed with lifestyle changes. But for others, the winter blues can turn into a more severe type of depression called seasonal affective disorder or ...

Depression is a mental health condition that causes a chronic feeling of emptiness, sadness, or inability to feel pleasure that may appear to happen for no clear reason. Depression is the leading ...

Idiopathic hypersomnia is characterized by excessive ... they had a comorbid diagnosis of or were receiving treatment for depression (67%), anxiety (69%), or both (53%). The researchers found ...