Mental and Physical Attributes of Work
Different people would classify workers under different terms depending upon their background. One thing we should realize is that whatever the work be, the individual does not only engage in muscular and motor activities but also uses his memory and judgement. And that as a person works, characteristics changes take lace in the body function and behavior. The starting point of work activity is setting up the mind. 
Then the muscles and nerves are warmed up or conditioned. Along with the warm-up the mind concentrates its thoughts on the work; this leads to increase in capacity of the nerves and muscles to perform their functions. As the body performs to capacity, positive attitude come about and a standard o performance is set. Quality and quantity o performance are established and the standards are strictly followed.