Exercise is closely linked to immunity, as regular physical activity can enhance the immune response. Moderate exercise, such as brisk walking or cycling, increases circulation and promotes the optimal functioning of immune cells. This stimulation helps the body fend off infections more effectively. Additionally, consistent physical activity can reduce inflammation and stress, both of which are known to negatively affect immune function. However, excessive exercise without adequate rest may lead to a temporary decrease in immune function. Therefore, a balanced approach to exercise is key to promoting overall health and resilience.