Exercise intolerance refers to the inability to sustain physical activity expected for one's age and health status, often manifesting as early fatigue, shortness of breath, and muscle weakness. It can arise from various underlying conditions, including cardiovascular diseases, respiratory disorders, and metabolic issues. The World Health Organization (WHO) highlights that insufficient physical activity is a major risk factor for non-communicable diseases and premature mortality. To improve physical stamina, experts recommend starting with low-intensity activities, focusing on aerobic exercises like brisk walking and swimming, incorporating strength training, and optimizing nutrition. Regular physical activity can lead to significant health benefits, enhancing quality of life and reducing chronic disease risks. However, individuals experiencing persistent exercise intolerance should seek medical advice to rule out serious health conditions. By making small, consistent lifestyle changes, individuals can build endurance and resilience, contributing to long-term health.