The conditions at a person's job vary greatly depending on class. Those in the upper-middle class and middle class enjoy greater freedoms in their occupations. They are usually more respected, enjoy more diversity and are able to exhibit some authority.  Those in lower classes tend to feel more alienated and have lower work satisfaction overall. The physical conditions of the workplace differ greatly between classes. While middle-class workers may "suffer alienating conditions" or "lack of job satisfaction", blue-collar workers are more apt to suffer alienating, often routine, work with obvious physical health hazards, injury and even death.