Depression
Depression encompasses a range of mental health issues marked by a lack of positive affect, low mood, and various emotional, cognitive, physical, and behavioral symptoms. It can range in severity, from major depression to milder forms. In major depressive episodes, mood is often unresponsive to circumstances and remains low throughout the day, though some experience mood fluctuations or temporary lifts from positive events.
Symptoms may include tearfulness, irritability, social withdrawal, increased pain sensitivity, fatigue, loss of libido, and changes in sleep and appetite—either increased or decreased. Common emotional experiences include loss of interest in daily activities, feelings of guilt, worthlessness, and hopelessness, lowered self-esteem, and thoughts of suicide. Cognitive symptoms involve poor concentration, persistent negative thoughts, mental slowing, and rumination.
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Anxiety
Generalized anxiety disorder (GAD) involves excessive, uncontrollable worry and anxiety about various events or activities, occurring most days for at least six months. This anxiety often comes with restlessness, fatigue, difficulty concentrating, irritability, muscle tension, and disturbed sleep. Unlike other anxiety disorders, the worry in generalized anxiety isn't limited to specific fears, like panic attacks or social embarrassment.
People with generalized anxiety may excessively worry about everyday situations, such as the health of loved ones, and often fear catastrophic outcomes from minor issues. This condition can lead to feelings of demoralization, discouragement, and shame about struggling with daily routines. It often co-occurs with depression, complicating diagnosis and treatment.
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Panic Disorder
People with panic disorder experience sudden, intense episodes of anxiety, known as panic attacks, which can be triggered by specific situations or occur unexpectedly. These attacks often lead individuals to avoid certain situations to prevent the panic, which can develop into agoraphobia. Agoraphobia involves fear of being in places where escape might be difficult or help unavailable if a panic attack occurs. This fear can result in avoiding activities like being alone outside, staying home alone, being in crowds, traveling, or being in specific places like bridges or elevators. The frequency and severity of panic attacks can vary widely among individuals.
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Obsessive-Compulsive Disorder
Obsessive-Compulsive Disorder (OCD) is characterized by the presence of obsessions, compulsions, or both. Obsessions are unwanted, intrusive thoughts, images, or urges that repeatedly enter a person's mind and cause distress. Individuals with OCD recognize these thoughts as their own, even though they find them unreasonable or excessive. Common obsessions include fears of contamination, harm, concerns about order or symmetry, unwanted religious or sexual thoughts, and urges to hoard.
Compulsions are repetitive behaviors or mental acts that a person feels compelled to perform, often to alleviate the distress caused by obsessions. These can be overt actions, like checking locks or washing hands, or covert mental acts, like repeating words or prayers. Compulsions are not pleasurable and differ from impulsive behaviors like shopping or gambling, which provide immediate gratification. The most common compulsions are checking and cleaning, which are easily recognized as they resemble normal behaviors.
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