An introduction to clinical depression
Clinical depression, also known as major depressive disorder, is a common and serious medical illness that negatively affects how you feel, the way you think, and how you act. The American Psychiatric Association (APA) defines it in the Diagnostic and Statistical Manual of Mental Disorders (DSM) as a disorder characterized by persistent feelings of sadness and a lack of interest in external stimuli.
Clinical depression is widespread, affecting millions of people worldwide. The World Health Organization estimates it as a leading cause of disability. It's not just feeling sad; it's a debilitating condition that can significantly impair a person's ability to function in daily life.
Common symptoms of clinical depression include a persistent sad, anxious, or "empty" mood, feelings of hopelessness or pessimism, irritability, feelings of guilt, worthlessness, or helplessness, loss of interest in hobbies and activities, decreased energy or fatigue, difficulty concentrating, remembering, or making decisions, insomnia, early-morning wakefulness, or oversleeping, appetite and weight changes, thoughts of death or suicide, suicide attempts, and aches or pains, headaches, cramps, or digestive problems without a clear physical cause and that do not ease even with treatment.
The causes of clinical depression are varied and often a combination of genetic, biological, environmental, and psychological factors. Traumatic events, major life changes, certain medications, and other mental health disorders can also contribute to its development.










