Depression is a common and complex co-occurring mental health condition alongside addiction that affects how people feel, think, and function in daily life. It goes beyond occasional sadness, manifesting as persistent feelings of hopelessness, worthlessness, and disinterest in activities once enjoyed. Physical symptoms like fatigue, changes in appetite, and disrupted sleep are common. Depression can stem from various factors, including genetics, trauma, life stressors, or chemical imbalances in the brain. Understanding depression requires empathy, recognizing it as a legitimate health issue rather than a personal failing. Seeking help through therapy, medication, or support systems is essential for managing and overcoming its impact on mental well-being.