The purpose of this publication is an attempt to define the role and importance of physical activity among subpopulations in the period of involution. In the society of the 21st century the process of aging and old age is inevitable and irreversible. From literature data it follows that the modern society founded numerous changes. One of the dimensions of this transformation is the increase in the average age of life. The assessment of the Central Statistical Office shows that in 2050 up to 1/3 of our population will be 65. In connection with the foregoing, the public should be properly prepared for this demographic change. One of the important factors in this strategy should be the education of the society to the old age and in the old age. In addition, institutions and organizations engaged in all sorts of physical fitness must take educational activities to educate the public of the positive effects deriving from the active participation in various forms of physical activity. The participation of various social groups, including older people, as can be seen from the literature of the subject is the source of healthy aging and is an effective tool for the growing phenomenon, which is hypokinesis.

Key words: old age, aging process, physical activity, healthy lifestyle.