Mood disorders include depressive disorders and bipolar disorders. These types of psychiatric disorders affect a person’s emotions and may cause severe lows, called depression, and highs, called mania ...

Whether you're a college student in the middle of a major slump, a new mom who can't pinpoint why she's feeling so glum, or a retiree grieving over the loss of a loved one, that question isn't an easy ...

Depressed mood is a significant feature of other mental health conditions besides major depression. Many experts recognize four major types of depression: major depressive disorder, the depression of ...

Mental health professionals use the DSM to standardize the diagnosis and treatment processes for mental health conditions, including types of depression. The Diagnostic and Statistical Manual of ...

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 ...

Bipolar disorder is a long-term mood disorder characterized by major fluctuations in mood — both high and low — that can impact daily functioning and behavior. Although bipolar disorder is a chronic ...

Hyperarousal plays an important role in mental disorders. It influences the severity of insomnia, depression, anxiety, post-traumatic stress disorder (PTSD), and ADHD. Yet it is striking that ...

Has the heat got you down? You’re probably not alone. Wintertime—with its long, dark nights—is the season most associated with low mood and depression. But sun-filled summer days can also bring on the ...