Leisure, or free time, is time spent away from business, work, domestic chores, and education. It also excludes time spent on necessary activities such as eating and sleeping.The distinction between leisure and unavoidable activities is not a rigidly defined one, e.g. people sometimes do work-oriented tasks for pleasure as well as for long-term utility. A distinction may also be drawn between free time and leisure. For example, Situationist International maintains that free time is illusory and rarely free; economic and social forces appropriate free time from the individual and sell it back to them[clarification needed] as the commodity known as "leisure". Certainly most people's leisure activities are not a completely free choice, and may be constrained by social pressures, e.g. people may be coerced into spending time gardening by the need to keep up with the standard of neighbouring gardens.A related concept is that of social leisure, which involves leisurely activities in a social settings, such as extracurricular activities, e.g. sports, clubs.Leisure studies and sociology of leisure are the academic disciplines concerned with the study and analysis of leisure.