Human work involves physical actions and/or mental decisions. It is normally performed to solve problems — situations in our lives that require periodic attention or that threaten us in some way — or to create new ideas or things that are useful to us or to other people.
Positive rewards for work can be intrinsic — the pleasure or other satisfactions in performing the work — and/or extrinsic — responses from the environment, which includes other people, that benefit the worker physically, financially, and/or psychologically.
Negative rewards (costs) for work can be physical, financial, or psychological, too. They can include outright failure to perform the attempted work, or physical or mental fatigue, stress, or depression, or costs in money or other expenditures such as wear and tear of our possessions. To counteract the effects of negative rewards, people often resort to short-term positive rewards from eating or drinking, including possibly taking addictive psychoactive substances, or other activities that are positively rewarding in the short term, including some activities, such as gambling, that can become harmful if repeated.
Much strictly physical work these days — moving things, combining things, or taking things apart — can be done by machines. Such work is intrinsically rewarding only to the extent that it feels good and…
