Generalized Anxiety Disorder (GAD) is a common anxiety disorder characterized by excessive, persistent, and uncontrollable worry about everyday events and activities. The anxiety is disproportionate to the actual situation and continues for at least six months. People with GAD often experience restlessness, muscle tension, fatigue, difficulty concentrating, irritability, and sleep disturbances. The disorder affects social, occupational, and personal functioning and significantly reduces quality of life. The causes of GAD are complex and involve the interaction of biological, psychological, and environmental factors. Biological factors play a major role in the development of GAD. Genetic studies suggest that individuals with a family history of anxiety disorders are more likely to develop the condition. Although no single gene is responsible, several genes may contribute to vulnerability. Neurobiological research indicates abnormalities in brain regions such as the amygdala, prefrontal cortex, and hippocampus, which regulate fear and emotional responses. Imbalances in neurotransmitters, including gamma-aminobutyric acid (GABA), serotonin, and norepinephrine, are also associated with anxiety symptoms. Dysregulation of the hypothalamic-pituitary-adrenal (HPA) axis may result in prolonged stress responses, increasing susceptibility to chronic anxiety. Psychological theories provide further explanations for GAD. According to the cognitive theory proposed by Aaron Beck, individuals