Good health is more than just physical health, but also includes mental, emotional, and social well-being. Health exists on a continuum that can change quickly or gradually from birth to death. Wellness is an overall state of well-being achieved through making healthy lifestyle choices based on health knowledge. Promoting health involves both personal lifestyle factors like getting enough sleep and exercise, and prevention practices like wearing seatbelts and sunscreen to avoid injury or disease. Health education and literacy help people access and understand health information to make choices that support overall wellness.