Smoking negatively impacts physical fitness and health by reducing lung capacity, impairing cardiovascular function, and decreasing overall stamina. Tobacco smoke introduces harmful substances that damage lung tissue and blood vessels, leading to a myriad of health issues. Smokers may experience reduced exercise tolerance, increased fatigue, and slower recovery times. Furthermore, smoking is linked to a higher risk of chronic diseases such as heart disease and cancer, ultimately compromising physical fitness and well-being.