A lifestyle typically reflects an individual’s attitudes, way of life, values, or world view. Therefore, a lifestyle is a means of forging a sense of self and to create cultural symbols that resonate with personal identity. Not all aspects of a lifestyle are voluntary. Surrounding social and technical systems can constrain the lifestyle choices available to the individual and the symbols she/he is able to project to others and the self.
The lines between personal identity and the everyday doings that signal a particular lifestyle become blurred in modern society. For example, “green lifestyle” means holding beliefs and engaging in activities that consume fewer resources and produce less harmful waste (i.e. a smaller ecological footprint), and deriving a sense of self from holding these beliefs and engaging in these activities.
A healthy or unhealthy lifestyle will most likely be transmitted across generations. According to the study done by Case et al. (2002), when a 0-3 year old child has a mother who practices a healthy lifestyle, this child will be 27% more likely to become healthy and adopt the same lifestyle. For instance, high income parents are more likely to eat organic food, have time to exercise, and provide the best living condition to their children.
Finally, a further development leads to the so-called profiles-and-trends approach, at the core of which is an analysis of the relations between mental and behavioural variables, bearing in mind that socio-cultural trends influence both the diffusion of various lifestyles within a population and the emerging of different modalities of interaction between thought and action.