An important consideration is that the requirements for maintaining physical health are not identical for every individual. Our age, genetic inheritance, existing medical conditions, physical capabilities, environment and personal circumstances all influence what is appropriate and achievable.

For example, an activity that is beneficial for one person may be unsuitable for another because of illness, injury or physical limitations. Similarly, our nutritional requirements can differ considerably depending on our stage of life, activity levels and underlying health conditions. Therefore, developing an understanding of our individual needs is more useful than simply following a lifestyle because it has benefited somebody else.