Stress is more than a reaction to life's challenges, it is powerful force that shapes the way we think, feel, perform, and engage in everyday life. While stress can motivate growth and achievement, unmanaged stress can disrupt physical health, emotional wellbeing, relationships and participation in meaningful occupation. The chapters in this publication provide a comprehensive understanding of stress, beginning with its fundamental concepts, significance, and underlying physiological mechanisms. They explore the various causes, types, reactions, and theoretical models of stress, followed by standardized methods for its assessment and evidence-based approaches to its management. Special emphasis is placed on the role of occupational therapy in promoting occupational balance, enhancing coping strategies, and improving participation in meaningful daily activities. Every day brings new opportunities, responsibilities and challenges. While stress is a natural response to life's demands, the way we understand and manage it determines its impact on our health, relationships, work, and overall wellbeing. Left unaddressed stress can affect not only the mind and body but also our ability to enjoy and participate in everyday life.