Rules of good personal health (balanced diet, personal hygiene, cleanliness)

What are the rules and practices of keeping good health called?

Which of the following is NOT listed as an essential component for good health in the text?

Which of these is a rule of personal hygiene mentioned in the text?

What is recommended regarding nails for good personal health?

Which of the following describes people in good health?

According to the text, what is good health defined as?