Regular physical activity has a positive impact on the immune system by promoting circulation and enhancing the body’s ability to fight off infections. Exercise helps to increase the circulation of immune cells and reduces inflammation, which can enhance immunity. Moderate, consistent activity has been shown to improve the effectiveness of the immune response, especially during flu season. Conversely, prolonged intense exercise without adequate recovery can temporarily suppress immune function. Therefore, maintaining a balanced approach to physical activity is crucial for optimal immune health.