Hygiene is an extremely comprehensive concept. It includes the regime of working and rest conditions, rational nutrition, adherence to the rules of body care, use of hygiene products and much more.

Personal hygiene is a set of rules for human behaviour in everyday life or at work. In the narrow sense, it is hygienic maintenance of body, clothing and household items. Violation of personal hygiene requirements can negatively affect the health of not only one person, but also of large groups of people (team, family, members of various communities).