Health is defined as a state of complete physical, mental and social well-being, while illness is the opposite. Maintaining healthy habits like a balanced diet, rest, exercise and hygiene can help prevent illness. Diseases can be infectious, which are spread from person to person, or non-infectious. Pathogens like bacteria and viruses can enter the body through the respiratory, digestive, or skin systems and cause infectious diseases. Preventing the spread of infections involves disinfecting wounds, washing hands, avoiding sharing utensils, and not walking barefoot in public places. Vaccines introduce inactive pathogens to help the body develop immunity, while different types of infections require antibiotics, antifungals, or symptom