Health is the condition of being free from disease, injury, or illness, including physical, mental, and social well-being. To maintain good health, it is important to eat a balanced diet, exercise regularly, get enough rest, and avoid harmful habits like smoking, excessive drinking, and drug use. To prevent illness, vaccination and regular check-ups are crucial. Good health also involves managing chronic conditions and taking appropriate medication. Genetics, environment, and lifestyle are factors that influence an individual's health. Ultimately, good health leads to a satisfying life.