Fundamentals of Nursing · Health, Wellness, and Community-Based Health Care
Defining Health and Wellness
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In 30 seconds
"What does it mean to be healthy?" A person can have a completely normal physical exam yet feel unwell, and another person living with a chronic condition can describe themselves as healthy and thriving. In everyday conversation the word Health A state of physical, mental, and social well-being, not merely the absence of disease Full entry → is used loosely, but in nursing it carries a multidimensional meaning that shapes how you assess patients, plan care, and judge whether care worked.
The most widely cited definition comes from the World Health Organization (WHO, 1948): health is a state of complete physical, mental, and social well-being and not merely the absence of Disease Objective, measurable alteration in body structure or function Full entry → or infirmity. Three ideas in that sentence matter for nursing. First, health includes the mind and social life, not just the body. Second, health is more than "not sick." Third, the word "complete" is aspirational — few people experience total well-being in every domain at once, which is why nurses treat health as a goal to move toward rather than a box to check.
Wellness The active process of choosing behaviors that move toward a healthier life Full entry → is related but distinct. Wellness is the active process of making choices that move a person toward a healthier life. It is something a person does, not something a person has. If health is a state, wellness is the journey. Every other topic in this chapter — models of health, prevention, community-based care — builds on how you define the very thing you are trying to promote.
Why this matters
The definition a nurse uses quietly changes the care delivered. A nurse who defines health as "absence of disease" may consider a patient done once vital signs normalize; a nurse using a broader definition considers function, mood, social support, and the person's own goals. The definition also shapes what you listen for during assessment: do you ask only about symptoms, or also about sleep, stress, work, and relationships? It matters for equity too — people living with chronic conditions are not "unhealthy" by definition; many live full, meaningful lives. On exams, definition questions are frequent trap items. In practice, a narrow definition produces care that misses what the patient actually cares about, and a person who does not feel understood is far less likely to follow a care plan.
The college version
Core Concepts
Health is multidimensional and dynamic
Health spans physical, mental, and social dimensions, and those dimensions interact: chronic pain (physical) can produce depression (mental) and isolation (social), and strong social ties can buffer the impact of Illness The subjective, personal experience of feeling unwell Full entry →. Health also changes over time and across circumstances — a person may be healthier at 60 than at 40, and the same person's health looks different during a crisis than during a calm period. Whatever the current state, it reflects an interplay of genetics, lifestyle, environment, access to care, culture, and personal beliefs.
Wellness is an active process
Wellness is not a possession but a set of deliberate choices: balanced nutrition, regular activity, adequate sleep, stress management, social connection, and practices that support meaning and purpose. Health education commonly describes wellness dimensions: physical, emotional, intellectual, social, spiritual, environmental, occupational, and financial. The key nursing implication: wellness can be improved even when disease is present. A person with diabetes can still grow in wellness through exercise, sleep, stress management, and community connection.
Disease versus illness
These words are often used interchangeably, but nurses distinguish them. Disease is the objective, measurable alteration in body structure or function — the pathology that can be diagnosed (e.g., hypertension, infection). Illness is the subjective, personal experience of not feeling well: how the person feels, what the condition means to them, and how it disrupts their roles. A person can have a disease and feel well (early hypertension is often silent), and a person can feel ill with no diagnosable disease. Nurses care for people who are ill, not just for diseases.
Health beliefs and perceptions
A Health belief A person's ideas about health, risk, and what causes illness Full entry → is a person's idea about health, risk, and what causes illness, shaped by culture, family, past experience, religion, education, and the media. Beliefs drive behavior: a person who believes "I'm not the type who gets heart disease" is unlikely to change diet; a person who believes a treatment is harmful will not take it. Assessment frameworks such as Gordon's functional health patterns include a health-perception–health-management pattern, which prompts questions like "How would you describe your health?" and "What do you think is going on?" Asking open questions reveals the belief behind the behavior — the starting point for effective teaching.
Person-first language
Nursing communication uses Person-first language Describing the person before the condition ("person with diabetes") Full entry →: "person with diabetes," not "diabetic"; "person experiencing homelessness," not "homeless person." This phrasing affirms that a condition or circumstance does not define the person. It supports dignity, builds trust, and models respectful communication — a standard that applies to documentation and handoffs as well as conversation.
Common Confusions
| Do Not Confuse | With | Difference |
|---|---|---|
| Health | Absence of disease | Health includes mental and social well-being even when a disease is present |
| Health | Wellness | Health is a state; wellness is the active process of choices that support it |
| Disease | Illness | Disease is objective and diagnosable; illness is the subjective experience of feeling unwell |
| "Feeling fine" | Being healthy | Feeling fine is one clue, not proof — many conditions are silent in early stages |
Eli explains
The same idea, in plain words
Explain it like I’m 10
Being healthy isn't just about not being sick, like a car that isn't broken. Being healthy also means feeling good in your body, your mind, and with other people. Wellness is the part where you choose to do things that keep you feeling good, like playing outside, eating well, and talking about your feelings. Two people with the same illness can feel very different, so nurses always ask how you feel, not just what tests show.
Worked example
Mr. Alvarez, 55, comes to the clinic for a routine visit. A screening shows elevated blood pressure, but he tells the nurse, "I feel fine, so I must be fine." By his definition, health means "how I feel," and he feels good — so in his mind there is no problem. The nurse resists arguing with the numbers. Instead, she uses an open question: "What would it mean to you if you had high blood pressure?" He reveals that his father died of a stroke, and that he is terrified of "becoming a burden" like his father. Now the nurse understands: his inaction is not denial but fear. She connects monitoring his blood pressure to something he values — staying independent and present for his grandchildren — and they set a small first goal together. The teaching works because the nurse assessed his health belief and his definition of health before delivering information. This is the difference between treating a number and caring for a person.
Key takeaways
- The WHO definition names three dimensions: physical, mental, and social well-being — not merely the absence of disease.
- Health is a state; wellness is an active process of choices.
- Disease is objective pathology; illness is the person's subjective experience.
- Common wellness dimensions: physical, emotional, intellectual, social, spiritual, environmental, occupational, financial.
- Health beliefs — shaped by culture and experience — drive what people actually do about their health.
- Use person-first language in speech, charting, and handoffs.
- Health is dynamic: it shifts over time and across life circumstances, even when a chronic disease is present.
Check yourself
5 review questions from the chapter. Try each one, then open the answer.
What are the three components of the WHO definition of health?
Show answer
Physical, mental, and social well-being.
How do health and wellness differ?
Show answer
Health is a state of well-being; wellness is the active, ongoing process of making choices that support well-being.
Why might a person with a diagnosed disease still describe themselves as healthy?
Show answer
Because health is broader than the absence of pathology — the disease may not interfere with what the person values, and the person's own perception of their life matters.
Give an example of person-first language.
Show answer
"Person with diabetes" instead of "diabetic"; "person experiencing homelessness" instead of "homeless person."
Why do health beliefs matter to nursing care?
Show answer
Beliefs drive behavior: a person who does not believe they are at risk is unlikely to follow prevention advice, so care must address the belief, not just deliver instructions.
Study tools & related lessonsKey vocabulary · Related
Key vocabulary
- Health
- A state of physical, mental, and social well-being, not merely the absence of disease
- Wellness
- The active process of choosing behaviors that move toward a healthier life
- Disease
- Objective, measurable alteration in body structure or function
- Illness
- The subjective, personal experience of feeling unwell
- Health belief
- A person's ideas about health, risk, and what causes illness
- Person-first language
- Describing the person before the condition ("person with diabetes")
Sources & references
This lesson was adapted from the open educational references above; their licenses and attributions are preserved. See Copyright & Licensing.
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