That exercise is good for you is said everywhere; a single page saying exactly what it is good for is rarer. The NHS says regular physical activity can lower the risk of early death by up to 30% and lists ten conditions with lower risk. The target is at least 150 minutes a week. We set out the original and linked each item to articles of ours.
1. How much lower. Exercise can reduce the risk of major illnesses such as coronary heart disease, stroke, type 2 diabetes and cancer, and lower the risk of early death by up to 30%.
2. How much to do. Adults should try to be active every day and aim for at least 150 minutes of physical activity over a week, through a variety of activities.
3. Sitting. Many adults sit for more than 7 hours a day, and people over 65 spend 10 hours or more sitting or lying down.
Ten risks that fall — the NHS list
| No. | As the NHS lists it | Related article of ours |
|---|---|---|
| 1 | Coronary heart disease and stroke | exercise intensity |
| 2 | Type 2 diabetes | brisk walking |
| 3 | Bowel cancer | — |
| 4 | Breast cancer (in women) | — |
| 5 | Early death | daily steps |
| 6 | Osteoarthritis | knee strengthening |
| 7 | Hip fracture | strength exercises for older adults |
| 8 | Falls (among older adults) | balance exercises |
| 9 | Depression | — |
| 10 | Dementia, including Alzheimer’s disease | — |
The first two columns are the NHS list as given; the third is our own linking — it does not mean the NHS prescribes that exercise for that condition. The only figure on the page is “up to 30%” for early death; there are no per-condition numbers. The NHS adds that physical activity can boost self-esteem, mood, sleep quality and energy, and reduce the risk of stress.
How much — 150 minutes and two intensities
- The target — citing the UK Chief Medical Officers’ physical activity guidelines: adults should try to be active every day and aim for at least 150 minutes over a week, through a variety of activities.
- Moderate intensity — movement that raises your heart rate; you can still talk but cannot sing the words to a song.
- Vigorous intensity — breathing hard and fast; you cannot say more than a few words without pausing for breath.
The original does not fix how to split the 150 minutes. Worked out, that is 30 minutes on 5 days, or about 22 minutes every day (150 ÷ 5 = 30; 150 ÷ 7 ≈ 21.4 — our arithmetic). Gauging intensity by talking and singing is covered in the talk test.
Sitting — 7 hours and 10 hours
- Research suggests many adults spend more than 7 hours a day sitting, at work, on transport or in leisure time.
- People aged over 65 spend 10 hours or more each day sitting or lying down, making them the most sedentary age group.
- Sedentary behaviour is thought to raise the risk of long-term conditions such as heart disease, stroke and type 2 diabetes, as well as weight gain and obesity.
Taking 16 waking hours, 7 hours is about 44% of them and 10 hours about 63% (7 ÷ 16, 10 ÷ 16 — our arithmetic, and the 16 hours is our assumption). What WHO recommends on sitting is in sitting too long.
How to start
The NHS answer is simple: for most people the easiest way to get moving is to make activity part of everyday life, such as walking or cycling instead of using the car. Among our articles, brisk walking (from 10 minutes a day) and sitting exercises fit that starting point.
Checklist
- ☐ 150 minutes a week — 30 minutes on 5 days, or about 22 minutes daily
- ☐ An intensity where you can talk but not sing
- ☐ Count your sitting hours for one day
- ☐ Build it in: walk or cycle instead of driving
Questions that remain
30% compared with whom?
The page says only “up to 30%” and does not give the comparison group or the underlying research, so we have not taken it further.
Is it the same 150 minutes for children or in pregnancy?
This page is for adults. For children see children’s physical activity, and for pregnancy exercise during pregnancy, both from the WHO guidelines.
If the heart is your concern, know the symptoms too — see heart attack warning signs.
Sources
- NHS — Benefits of exercise (reviewed 15 August 2024; next review due 15 August 2027; checked 6 October 2026). Up to 30%, the ten lower risks, 150 minutes, the two intensities, 7 hours and 10 hours, and building activity into daily life.
- Our own working. 30 minutes on 5 days and about 22 minutes daily, and the 44% and 63% (on a 16-hour assumption), are ours. The third column of the table is our own linking.
Where to check further
- In steps — daily steps.
- Starting at home — home workout basics.
Written on 6 October 2026. The list and figures are as the NHS gives them; the arithmetic and links are ours.
