What is Depressive Dissorder?
Depressive disorder (also known as depression) is a common mental disorder. It involves a depressed mood or loss of pleasure or interest in activities for long periods of time.
Depression is different from regular mood changes and feelings about everyday life. It can affect all aspects of life, including relationships with family, friends and community. It can result from or lead to problems at school and at work.
Depression can happen to anyone. People who have lived through abuse, severe losses or other stressful events are more likely to develop depression. Women are more likely to have depression than men.
What are the signs, symptoms and patterns of depression?
During a depressive episode, a person experiences a depressed mood (feeling sad, irritable, empty). They may feel a loss of pleasure or interest in activities.
A depressive episode is different from regular mood fluctuations. They last most of the day, nearly every day, for at least two weeks.
Other symptoms are also present, which may include:
• Poor concentration
• Feelings of excessive guilt or low self-worth
• Hopelessness about the future
• Thoughts about dying or suicide.
• Disrupted sleep.
• Changes in appetite or weight
• Feeling very tired or low in energy.
Depression can cause difficulties in all aspects of life, including in the community and at home, work and school.
A depressive episode can be categorized as mild, moderate, or severe depending on the number and severity of symptoms, as well as the impact on the individual’s functioning.
There are different patterns of depressive episodes including:
Single episode depressive disorder, meaning the person’s first and only episode;
Recurrent depressive disorder, meaning the person has a history of at least two depressive episodes;
Bipolar disorder, meaning that depressive episodes alternate with periods of manic symptoms, which include euphoria or irritability, increased activity or energy, and other symptoms such as increased talkativeness, racing thoughts, increased self-esteem, decreased need for sleep, distractibility, and impulsive reckless behaviour.
Contributing factors and prevention
Depression results from a complex interaction of social, psychological, and biological factors. People who have gone through adverse life events (unemployment, bereavement, traumatic events) are more likely to develop depression. Depression can, in turn, lead to more stress and dysfunction and worsen the affected person’s life situation and the depression itself.
Depression is closely related to and affected by physical health. Many of the factors that influence depression (such as physical inactivity or harmful use of alcohol) are also known risk factors for diseases such as cardiovascular disease, cancer, diabetes and respiratory diseases. In turn people with these diseases may also find themselves experiencing depression due to the difficulties associated with managing their condition.
Prevention programmes have been shown to reduce depression. Effective community approaches to prevent depression include school-based programmes to enhance a pattern of positive coping in children and adolescents. Interventions for parents of children with behavioural problems may reduce parental depressive symptoms and improve outcomes for their children. Exercise programmes for older persons can also be effective in depression prevention.
What is Anxiety?
Everyone can feel anxious sometimes, but people with anxiety disorders often experience fear and worry that is both intense and excessive. These feelings are typically accompanied by physical tension and other behavioural and cognitive symptoms. They are difficult to control, cause significant distress and can last a long time if untreated. Anxiety disorders interfere with daily activities and can impair a person’s family, social and school or working life.
What are the signs and symptoms?
People with an anxiety disorder may experience excessive fear or worry about a specific situation (for example, a panic attack or social situation) or, in the case of generalized anxiety disorder, about a broad range of everyday situations. They typically experience these symptoms over an extended period – at least several months. Usually, they avoid the situations that make them anxious.
Other symptoms of anxiety disorders may include:
• Trouble concentrating or making decisions.
• Feeling irritable, tense or restless
• Experiencing nausea or abdominal distress
• Having heart palpitations
• Sweating, trembling or shaking.
• Trouble sleeping
• Having a sense of impending danger, panic or doom.
Anxiety disorders increase the risk for depression and substance use disorders as well as the risk of suicidal thoughts and behaviours.
There are several different kinds of anxiety disorders, including:
People may experience more than one anxiety disorder at the same time. Symptoms often begin during childhood or adolescence and continue into adulthood. Girls and women are more likely to experience an anxiety disorder than boys and men.
Contributing factors and prevention
Anxiety disorders, like other mental health conditions, result from a complex interaction of social, psychological and biological factors. Anyone can have an anxiety disorder, but people who have lived through abuse, severe losses or other adverse experiences are more likely to develop one.
Anxiety disorders are closely related to and affected by physical health. Many of the impacts of anxiety (such as physical tension, nervous system hyperactivity or harmful use of alcohol) are also known risk factors for diseases such as cardiovascular disease. In turn, people with these diseases may also find themselves experiencing anxiety disorders due to the difficulties associated with managing their conditions.
Effective community-based approaches to prevent anxiety include parental education and school-based programmes to enhance social and emotional learning and build positive coping in children and adolescents. Exercise programmes can also be effective in preventing anxiety disorders in adults.
Generalized anxiety disorder (persistent and excessive worry about daily activities or events);
Panic disorder (panic attacks and fear of continued panic attacks);
Social anxiety disorder (high levels of fear and worry about social situations that might make the person feel humiliated, embarrassed or rejected);
Agoraphobia (excessive fear, worry and avoidance of situations that might cause a person to panic or feel trapped, helpless or embarrassed);
Separation anxiety disorder (excessive fear or worry about being separated from people with whom the person has a deep emotional bond);
Specific phobias (intense, irrational fears of specific objects or situations that lead to avoidance behaviour and significant distress);
Selective mutism (consistent inability to speak in certain social situations, despite the ability to speak comfortably in other settings, primarily affecting children).