The purpose was to study the views evolution concerning the healthy lifestyle principles formation. The object: factors that contribute to a healthy lifestyle and longevity. The subject of the study: the study of ideas about a healthy lifestyle — today and in the past. Research methods: theoretical (system analysis, generalization, system approach), bibliographic (relevant articles were searched in the Scopus and UpToDate databases, relevant articles for 2018–2022 were selected and processed by the title and abstracts, 15 scientific works were presented in this study). Results. It was evaluated that a healthy diet, the consumption of alcohol in small doses, the absence of passive and active smoking, a normal body mass index, moderate regular physical activity, timely vaccination, sufficient quality sleep, sufficient daily mental activity definitely contribute to the extension of the life expectancy and its qualities improvement. It was concluded that together with the society’s development, views regarding the principles of a healthy lifestyle partially changed, however, eating high-quality food and moderate sports were always relevant. Today, many approaches have been developed to ensure a qualitative healthy life. A significant number of types and examples of healthy nutrition are described, it is proven that a qualitative sleep increases the immunity and helps in the fight against numerous diseases, as well as the absence of bad habits and control over a normal body mass significantly reduce the risk of diseases.