Short answer: Health appears constantly across IELTS Writing, Speaking and Reading, so a bank of precise medical and lifestyle vocabulary lifts your Lexical Resource band. Learn these 30 Band 7+ words with their meanings, natural collocations and example sentences, then deploy them accurately in your own answers rather than decoratively.
Health is unavoidable in IELTS. It surfaces as a Task 2 essay on public healthcare or diet, as Speaking Part 1 questions about exercise and sleep, and as Reading passages on disease, medicine and wellbeing.
The problem for most candidates is not ideas — everyone has opinions about health — but the vocabulary to express those ideas precisely. Saying "many people are sick" is Band 5 language; saying "the prevalence of chronic illness is rising" is Band 7.
This guide gives you thirty high-value health words, each with the collocation that makes it usable and an example sentence that shows it in a natural sentence, followed by a method for actually remembering them.
Why health vocabulary raises your band
The Lexical Resource criterion rewards two things above all: range and precision. Range means you do not repeat the same handful of words; precision means each word you choose says exactly what you mean and sits in a natural partnership.
Health is a topic where precise vocabulary exists in abundance — the difference between a disease that spreads and a contagious disease, or between sitting a lot and a sedentary lifestyle, is the difference between describing an idea and naming it.
Naming it reads as control, and control is what the higher bands measure. For the full essay-scoring picture, our guide to the IELTS Writing Task 2 essay types shows where topic vocabulary earns its marks within each question format.
There is a second, quieter benefit. Strong topic vocabulary speeds up Reading, because a passage on public health stops being a wall of unfamiliar terms and becomes a set of ideas you already have words for.
When you know that mortality means death rate and susceptible means easily affected, you read the paragraph rather than decoding it.
That is why building a topic word bank pays in more than one paper — and why deliberate health-topic reading practice compounds the vocabulary work you do here.
30 health words for Band 7+
Each row gives the word, a plain-English meaning, a natural collocation to learn it in, and an example sentence written for this guide. Learn the collocation, not just the word.
| Word | Meaning | Collocation | Example sentence |
|---|---|---|---|
| prevalence | how widespread a condition is in a population | the prevalence of | The prevalence of type 2 diabetes has risen sharply in many countries. |
| chronic | long-lasting and persistent (of an illness) | a chronic condition | Chronic conditions such as heart disease require lifelong management. |
| sedentary | involving much sitting and little physical activity | a sedentary lifestyle | A sedentary lifestyle is strongly linked to cardiovascular disease. |
| preventive | designed to stop disease before it occurs | preventive care | Preventive care, such as vaccination, reduces the burden on hospitals. |
| contagious | able to be spread from person to person by contact | a contagious disease | Officials isolated patients to limit the spread of the contagious disease. |
| immunity | the body's ability to resist infection | develop immunity | Vaccines help the body develop immunity to specific pathogens. |
| epidemic | a widespread occurrence of a disease in a community | curb an epidemic | The government acted quickly to curb the flu epidemic. |
| nutritious | containing substances the body needs to stay healthy | a nutritious diet | A nutritious diet rich in vegetables lowers the risk of many illnesses. |
| hygiene | practices that maintain health and prevent disease | personal hygiene | Good personal hygiene is one of the simplest ways to prevent infection. |
| diagnosis | identification of an illness from its symptoms | an early diagnosis | An early diagnosis greatly improves a patient's chances of recovery. |
| symptom | a physical sign that indicates a disease | show symptoms | Patients who show symptoms should self-isolate immediately. |
| wellbeing | the state of being comfortable, healthy and content | mental wellbeing | Regular exercise contributes to both physical and mental wellbeing. |
| deteriorate | to become progressively worse | a condition deteriorates | Without treatment, the patient's condition deteriorated rapidly. |
| rehabilitation | restoring someone to health after illness or injury | undergo rehabilitation | After surgery, she underwent months of rehabilitation to regain movement. |
| obesity | the condition of being severely overweight | combat obesity | Public campaigns aim to combat rising rates of childhood obesity. |
| malnutrition | a lack of proper nutrition | suffer from malnutrition | Millions of children in poorer regions still suffer from malnutrition. |
| vaccination | treatment with a vaccine to produce immunity | a vaccination programme | A nationwide vaccination programme dramatically reduced measles cases. |
| sanitation | arrangements for clean water and waste disposal | poor sanitation | Poor sanitation is a major cause of waterborne disease in developing regions. |
| therapeutic | relating to the healing or treatment of disease | therapeutic benefits | Researchers are exploring the therapeutic benefits of the new drug. |
| susceptible | likely to be affected by a disease | susceptible to infection | Elderly people are more susceptible to respiratory infections. |
| longevity | long life; long duration of life | promote longevity | A balanced diet and regular exercise are associated with greater longevity. |
| detrimental | tending to cause harm | detrimental to health | Excessive alcohol consumption is detrimental to health. |
| alleviate | to make suffering or a problem less severe | alleviate symptoms | Painkillers can alleviate the symptoms but do not treat the underlying cause. |
| holistic | treating the whole person, not just the symptoms | a holistic approach | A holistic approach considers diet, exercise and mental health together. |
| regimen | a prescribed course of treatment, diet or exercise | a treatment regimen | Patients must follow a strict medication regimen to control the condition. |
| outbreak | a sudden occurrence of a disease | contain an outbreak | Authorities moved swiftly to contain the outbreak of cholera. |
| immunise | to make immune, typically through vaccination | immunise against | Health workers travelled to remote villages to immunise children against polio. |
| mortality | the number of deaths in a population; death rate | reduce mortality | Improved medical care has significantly reduced infant mortality. |
| hereditary | passed genetically from parent to child | a hereditary condition | Some forms of cancer are thought to have a hereditary component. |
| recuperate | to recover from illness or exertion | recuperate from | She took two weeks off work to recuperate from the operation. |
How to use this list
A list you read once and never touch again teaches you almost nothing. The words that reach your Writing and Speaking are the ones you have retrieved from memory several times and used in your own sentences. Three habits turn this table into a genuine band gain.
Learn in chunks, not singles. Every row above pairs a word with a collocation for a reason: examiners reward the partnership. "The prevalence of obesity" is a chunk you can drop straight into an essay; "prevalence" floating alone is far harder to use correctly.
Memorise the two- or three-word phrase, and the grammar around the word comes for free.
Space your review. Reviewing all thirty words tomorrow, then again in three days, then in a week, embeds them far more durably than one long session.
This is exactly the schedule a spaced-repetition tool follows — the IELTSbiz daily Word Coach serves you a word a day with practice in using it, which turns passive recognition into active recall without the cramming.
For a structured month that layers topic banks like this one on top of a daily habit, follow our IELTS vocabulary 30-day plan.
Rehearse in real answers. After learning ten of these words, write a short paragraph on a health question using at least four of them, or record a one-minute Speaking answer. The act of retrieving a word under mild pressure is what fixes it.
Then check whether you used each collocation correctly, because a word used wrongly is worse than a simpler word used right.
Worked example: health vocabulary in a Task 2 paragraph
Here is a body paragraph written for this guide, responding to a prompt on why lifestyle diseases are increasing. The target vocabulary is shown in bold so you can see the chunks working together — in a real answer they would be unmarked.
"One major cause is the shift towards a sedentary lifestyle. As more people work at desks and travel by car, daily physical activity has fallen, and this is detrimental to health in several ways. The prevalence of obesity has climbed steadily, and with it the rate of chronic conditions such as diabetes and heart disease. Because these illnesses develop slowly, many sufferers show no early symptoms, which delays diagnosis until the condition has already deteriorated. Governments have responded with preventive care campaigns that promote a more nutritious diet and regular exercise, on the reasonable assumption that prevention is cheaper than treatment."
Notice that the vocabulary does the arguing. The paragraph is not decorated with hard words; each term carries a specific idea the everyday alternative would blur. That is the standard to aim for.
You can drill this kind of topic-anchored answer against real passages and prompts in per-type practice with trap-level feedback, which tells you when a word is doing real work and when it is just showing off.
Using these words in Speaking
Vocabulary that only lives on the page will not lift your Speaking band, because Speaking rewards words you can produce instantly and pronounce naturally.
Health is a gift here, since Part 1 almost always touches sleep, exercise, food or daily routine, and Part 3 opens out into public health and the pressures of modern life. The trick is to pitch the word to the part.
In Part 1, keep it light — "I try to stay active" or "I have a fairly balanced diet" — using the everyday end of your bank.
In Part 3, where the examiner expects analysis, the precise words come into their own: you can discuss why the prevalence of chronic disease is rising, whether preventive care is better value than treatment, or how a sedentary lifestyle is detrimental to health.
Aim for two or three precise terms per answer, not a stream of them; an answer stuffed with medical vocabulary sounds rehearsed, while two well-placed words sound fluent.
Practise by speaking for a minute on a health question and counting how many target words you reached for naturally — if the answer is zero, the words are still passive, and a few more days of active recall with a tool like the Word Coach will move them into speech.
Common mistakes with health vocabulary
The first trap is broken collocation. You develop immunity, you do not "make" it; you suffer from malnutrition, you do not "have malnutrition problem"; a disease is contagious, not "spreadable".
Because these partnerships are fixed, a wrong one signals that the word was memorised in isolation, which pulls the Lexical Resource score down rather than up. The second trap is register mismatch — dropping a clinical word into a casual Speaking answer where it sounds unnatural.
"I recuperated from a cold" is oddly formal for a chat; "I got over a cold" is what a fluent speaker says. Match the word to the situation. The free materials at Cambridge English learning resources are a reliable place to hear these words used in natural context.
Conclusion
Health rewards preparation because the topic is predictable and the vocabulary is finite. Master these thirty words as chunks, space your review so they stick, and rehearse them in real answers until the collocations are automatic.
Do that, and a health question stops being a scramble for words and becomes a chance to show exactly the range and precision the higher bands are looking for.