Why start running?
Running is simple, cheap and available almost anywhere. It raises your heart rate, builds fitness and can be a great way to clear your head. It also counts toward your weekly activity target: the NHS says adults should aim for at least 150 minutes of moderate activity or 75 minutes of vigorous activity a week, plus strength work on at least 2 days.
Many people worry that they are not the running type. The truth is that almost anyone can start, if they start gently. The key is to build slowly and to enjoy the process.
Build a walking base first if you preferBefore you start
Harvard Health says most people can safely take up walking, but it is best to check with your doctor first if you have dizzy spells, are very unsteady on your feet, take medicine that makes you drowsy or have a chronic or unstable condition such as heart disease, asthma, high blood pressure, osteoporosis or diabetes. Running is more demanding than walking, so it is even more important to check in if you are unsure.
- Choose comfortable, supportive shoes, and comfortable clothes.
- Pick a flat, safe route.
- Tell someone your plan if you run alone.
- Start with a base of regular walking if you are new to exercise.
The NHS Couch to 5K plan
Couch to 5K is a free NHS running programme for beginners. It spans 9 weeks, with 3 runs a week and rest days between sessions. Week one starts with alternating 1-minute runs and 90-second walks. Each week the running periods grow, and by the end you run for 30 minutes without stopping. You can take longer than nine weeks if you need to.
It is designed for everyone, whatever your fitness level or exercise history. There is an NHS app with weekly plans, trainer voices and music options.
- Runs per week: three, with a rest day between.
- Length: nine weeks, or longer at your own pace.
- Week 1: 1 minute of running, then 90 seconds of walking, repeated.
- By the end: running for 30 minutes without stopping.
Want a full beginner plan?
The Beginner Fitness Guide shows how to mix cardio, strength and rest.
How to do run-walk intervals
Run-walk means you alternate short runs with walking breaks, so your body can adapt. It is the same idea as interval training, which Harvard Health describes as bursts of effort followed by lower-intensity recovery.
- Warm up with 5 minutes of brisk walking.
- Run at an easy pace where you could still speak in short sentences.
- Walk when you need to, and do not wait until you are exhausted.
- Cool down with 5 minutes of walking and gentle stretching.
Start slowly. A slow jog is fine. Speed comes later.
Warm up and cool down
Harvard Health says a good warm-up should last five to 10 minutes and work all major muscle groups, and that starting with cold muscles can lead to injury. It suggests a cool-down of five to 10 minutes of slow movement, with stretches held 10 to 30 seconds.
- Walk briskly, then add gentle leg swings and hip circles.
- After the run, walk slowly until your breathing settles.
- Stretch your calves, thighs and hips.
See our guide to warming up and cooling down.
Shoes, clothing and safety
The NHS advises comfortable, supportive clothing. It also gives safety advice.
- Be aware of your surroundings, especially if you wear headphones. Watch for pedestrians, cyclists and vehicles.
- Run with a friend if you can, for safety and fun.
- In the dark, choose well-lit routes and wear reflective clothing.
- Carry water and a phone.
- Stop if you feel pain, dizziness or chest discomfort.
A worked example: from sofa to 30 minutes
Jo has never run. In week one, Jo alternates one-minute jogs with 90-second walks for 20 minutes, three times a week. It feels hard but doable.
By week five, Jo runs for five minutes at a time. On a tired week, Jo repeats the previous week rather than pushing on.
By week ten, Jo runs for 30 minutes. It took longer than the plan says, and that is fine. Jo keeps two runs a week and a walk on other days.
A sample week
- Monday: run-walk session.
- Tuesday: rest, or a gentle walk.
- Wednesday: run-walk session.
- Thursday: strength work at home.
- Friday: run-walk session.
- Saturday: a long, easy walk.
- Sunday: rest.
Adjust the plan to your fitness and health, and repeat a week if it feels like too much.
Common mistakes to avoid
- Running too fast. Start at a pace where you can talk.
- Doing too much too soon. Build gradually.
- Skipping rest days. Recovery makes you stronger.
- Wearing worn-out shoes. Replace them when they lose support.
- Ignoring pain. Stop and get advice.
Patience is the key skill for new runners.
Myths worth dropping
Myth 1: You have to run non-stop
Run-walk is a proven, gentle way to start.
Myth 2: You need to be slim or fit first
The NHS plan is designed for people at any starting level.
Myth 3: Running is only for the young
People start running at any age. Build up carefully and check with your doctor if needed.
Questions to ask yourself
A few honest questions help you tailor these ideas to your own life.
- What would make running enjoyable for me?
- When in the week could I fit three short sessions?
- Where is a safe route?
- Who could run or walk with me?
- What will I do if I miss a session?
Adapting it to your situation
- If you are just starting out: begin with five to ten minutes, and build up slowly.
- If you have a health condition: ask your doctor what is safe, and which signs mean stop.
- If you live alone: tell someone your plan, and keep a phone within reach.
- If you care for someone else: use short bursts, and share activity with them if possible.
- If you have limited mobility: choose seated or supported versions of exercises.
The habit is the same for everyone. Only the setting and the pace change.
Track how it goes
A light record helps you see what works. It takes less than a minute.
- Tick a calendar on days you do the habit.
- Note your energy on a 1 to 5 scale.
- Write one line about what helped or got in the way.
- Review every two weeks and change one thing.
Keeping it going
- Pick a fixed time that suits your energy.
- Link it to something you already do.
- Use a calendar or diary to tick off each day.
- Do it with a friend or family member.
- Celebrate progress that is not about weight or speed.
- Restart the next day if you miss one.
Our article on how to build a habit that sticks has more ideas.
When to get support
These are everyday habits. Talk to your doctor if you have a health condition, persistent tiredness, symptoms that worry you or questions about your own needs.
A doctor, pharmacist, physiotherapist or dietitian can look at your situation and tailor advice.
This article is general education, not personal medical or dietary advice. Its reviewer, Meena Narayanan, holds a personal training credential, which is not a medical or dietetics credential. Talk to your doctor before you change your exercise or eating habits, especially if you have a health condition, take medicines, are pregnant or have not exercised for a long time.
Prevent common running injuries
- Increase your running time gradually, and follow the plan.
- Do strength work on 2 days a week, as the NHS advises for all major muscle groups.
- Rest between runs.
- Replace worn shoes.
- Vary surfaces and routes.
- Stop and rest if a pain lasts or gets worse, and see a physiotherapist or doctor.
Most beginner niggles come from doing too much too soon. Patience protects you.
Treadmill or outdoors?
- Outdoors: free, varied and fresh air, but you need safe, well-lit routes.
- Treadmill: controlled surface and pace, and useful in bad weather.
- A mix: many people use both.
Whichever you choose, follow the same warm-up, run-walk and cool-down.
Recover well
Rest days matter. The NHS Couch to 5K plan builds in a rest day between runs. Sleep, food and water help too. See our guides to sleep recovery techniques and rest and recovery.
- Sleep at least seven hours.
- Eat regular balanced meals.
- Drink water through the day.
- Do strength work on 2 days a week. See beginner strength training.
Recap: the main points
- Start with run-walk intervals, three times a week.
- The NHS Couch to 5K plan takes 9 weeks and builds to 30 minutes of continuous running.
- Warm up and cool down for 5 to 10 minutes each.
- Choose comfortable shoes, safe routes and rest days.
- Check with your doctor first if you have a health condition.
Starting a running program: frequently asked questions
Mix short runs with walking, three times a week, and build gradually. The free NHS Couch to 5K plan does this over nine weeks.
The NHS plan spans 9 weeks, with 3 runs a week, though you can take longer at your own pace.
Three times a week, with rest days between, is a good start.
Yes. Harvard Health suggests a warm-up of five to 10 minutes and a cool-down of five to 10 minutes.
Running is demanding on joints, so build up gradually, choose supportive shoes and rest between sessions. Talk to your doctor if you have joint problems.
Stop if you feel chest pain, dizziness, severe breathlessness or sharp pain, and seek medical advice.
Want a full fitness plan? Read our Beginner Fitness Guide.
Sources and further reading
We checked the figures and guidance in this article against these sources. This article does not give personal medical advice.
- NHS: Get running with Couch to 5K
- NHS: Physical activity guidelines for adults aged 19 to 64
- Harvard Health: Exercise 101, don't skip the warm-up or cool-down
- Harvard Health: Do you need to see a doctor before starting your exercise program?
- Harvard Health: Interval training, a shorter, more enjoyable workout?
Want more? Head back to the Fitness hub or read the Start Here guides.