What is the science of health called?

The science of health is best referred to as hygiene. Hygiene encompasses a wide range of practices that aim to promote health and prevent the spread of diseases. It involves understanding and implementing principles of cleanliness, sanitation, and the maintenance of healthful conditions in our environment. Good hygiene practices can include personal care habits, food safety, and public health measures that contribute to overall well-being.

While the other choices represent important fields related to health, they are more specialized. Physiology studies the functions and mechanisms of the body systems; nutrition focuses on the intake and use of nutrients and its effects on health; pharmacology is the study of drugs and their effects on the body. These fields contribute to our understanding of health, but they do not encompass the broader concept of health management that hygiene represents.