4.2.3 - Health, illness, disability and the body

Definitions and social construction

Sociology begins by separating ideas that everyday language often blurs together. A disease usually refers to a biological malfunction or pathology in the body. Illness is the lived experience of feeling unwell and being recognised as unwell. Sickness is the social status attached to being seen as ill by other people and institutions. This matters because a society can change the meaning of illness even when the body itself has not changed.

The biomedical model treats health mainly as the absence of disease. It assumes that doctors can identify objective pathology and restore the body to normal functioning. Sociologists do not deny that bodies can be injured or diseased, but they argue that societies also decide which symptoms matter, which behaviours are abnormal, and which bodies count as normal, attractive, or capable.

A simple comparison helps keep the distinction clear:

Broad social definitions of health, such as those used by the World Health Organisation, include mental and social wellbeing as well as physical functioning. That already shows that health is not just a laboratory fact. It is partly a value judgement about what kind of life counts as flourishing.

The social construction of illness becomes clearer when we look historically. Homosexuality was once classified by powerful medical authorities as a mental disorder, but that definition was later removed. In the nineteenth-century American South, drapetomania was invented as a supposed illness to pathologise enslaved people who tried to escape. More recently, debates around ADHD show how behaviours can move from being seen as personality or classroom issues to being defined medically. These examples do not mean there is never real distress. They show that the boundary between difference, deviance, and illness is socially negotiated.

Cross-cultural variation makes the same point. What one society treats as a sign of disorder, another may interpret as a spiritual experience, a moral issue, or simply a normal variation in behaviour. Ideas about the healthy body also vary. Standards of slimness, fitness, masculinity, femininity, ageing, and disability are shaped by culture, media, and class, not just anatomy.

Functionalism and the sick role

Parsons (1951) argued that illness is not only a medical issue but also a problem for the social system. If too many people stop working or carrying out family roles, social order is disrupted. Functionalism therefore treats sickness as a form of sanctioned deviance: the sick person is temporarily excused from normal responsibilities, but only under strict conditions.

Parsons identified four main features of the sick role.

1. The sick person is exempt from normal social duties such as work.
2. The sick person is not blamed for being ill.
3. The sick person should want to get better because sickness is treated as undesirable.
4. The sick person should seek medical help and cooperate with treatment.

This model shows clearly that illness is regulated socially. A person is not simply ill; they are expected to behave in a morally approved way while ill. Doctors become gatekeepers who can legitimate absence from work, school, or other obligations. The functionalist view is useful because it shows that health is tied to role performance and value consensus.

However, the sick role has important limits. Navarro and other Marxists argue that it fits capitalist priorities because it encourages a disciplined and productive workforce. Instead of asking why poverty, poor housing, pollution, or dangerous work create illness, the model focuses on returning the individual to work. Feminists add that Parsons assumed a male breadwinner pattern of life. Many women cannot simply withdraw from domestic labour or caring responsibilities when ill, so the right to be "off duty" is unequally distributed. Interactionists criticise the model for fitting acute illness much better than chronic illness, mental distress, disability, or contested conditions where recovery is uncertain and diagnosis may be disputed.

The sick role also assumes a passive patient who accepts professional authority. In late modern health systems, patients are often expected to research treatments, manage long-term conditions, monitor risk, and make lifestyle choices. That makes Parsons still useful as an exam starting point, but weak as a full description of how illness works today.

Medical power and the body

If Parsons shows how illness is organised, Foucault shows how it is governed through knowledge and surveillance. He argued that modern medicine developed a clinical gaze: a way of looking at the body that breaks it down into organs, symptoms, risks, and measurable signs. The patient can then be treated less as a whole person and more as an object of expert observation.