To care for your digestive system, eat slowly, relax during meals, wash hands to kill germs, and eat a variety of nutritious foods like fruits and vegetables that contain fiber. Eating too much or too quickly can cause digestive problems and make it hard to sleep. For lungs and heart health, clean indoor air daily, avoid sugary drinks that can clog arteries, sit and walk properly, and get clean outdoor air through exercise. Protect bones and muscles by warming up and cooling down before and after exercise, choosing low-impact sports, and avoiding dangerous activities like football or heavy lifting that could cause injuries.