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Exercise and asthma

4
 min read · 
16 November 2025
Exercise and asthma
Physical activity can improve lung function, the immune system and asthma symptoms.

Living with asthma doesn’t mean you must stop doing the activities you love. If your asthma is well-controlled, it's likely you can be as active as you wish.

Some people with asthma worry that getting breathless is a sign that an attack is starting. In fact, getting your heart rate up can improve symptoms.

Regular physical activity and raising your heart rate boost your lung power. This increases your stamina and can reduce shortness of breath. It also:

  • Supports your immune system, helping fight off colds and viruses
  • Helps keep you at a healthy weight
  • Releases 'feel-good' chemicals in the brain, lowering chances of stress and depression
Good preparation for exercise

The most important thing is the regular use of your preventer inhaler. Most people need to take this twice per day.

This helps reduce the inflammation in your lungs that can lead to an asthma attack.

If your symptoms worsen with exercise, your asthma may not be well-controlled. Speak to your healthcare professional to see how they can support you.

They can review your asthma more frequently while you get more active. You can also ask to see a respiratory specialist who can teach you breathing techniques.

Exercise anxiety is normal

It is common to have worries about getting short of breath due to exercise. If you have concerns, try exercising with a friend who can support you.

You can give them a copy of your asthma action plan and talk them through what to do if symptoms occur. Remember, many elite sportspeople are living with asthma.

If you last exercised a while ago, start with less intense activity and build your way up. It's essential to go at a pace you are comfortable with.

Whether walking faster, gardening or doing some seated exercises. All movement counts.

You may also benefit by trying Cognitive Behavioural Therapy (CBT). This can reduce anxieties you might have about exercising.

Some safety tips for exercising

Make sure to carry your reliever inhaler (usually the blue one) with you. It’s vital that you know what to do if your asthma worsens during exercise.

Coughing, wheezing and shortness of breath are signs you need to stop. Take your reliever inhaler if this happens.

It’s normal to breathe faster during exercise. But if your breathing isn’t calming down after you stop, it’s a sign you might be having an asthma attack.

Finally, identify your triggers, such as pollen and pollution. Cold weather can also cause asthma symptoms. It’s OK to let yourself off on the bad days and rest.

The right approach for you

There are no 'bad' activities for people with asthma. For example:

  • Taking a daily walk
  • Playing more vigorously with your children or grandchildren
  • Doing the gardening
  • Strength training
  • Jogging
  • Spending less time sitting during the day

It may take some experimentation to find what works for you, so allow yourself time to find the right thing. Some people find yoga and tai chi to be good activities.

There is lots of evidence that it’s easier to stay active if it becomes a habit and slots easily into your life.

Start by setting yourself a reasonable challenge. Start small and build up something more each week. If the weather is bad, give yourself an alternate option.

Keeping the habit is most important.

Finally, remember to celebrate your achievements, big or small. All activity counts towards helping manage your asthma and staying healthy.

Disclaimer

This article is for educational purposes only and should not be used as a substitute for medical advice. Always speak to your doctor, nurse or pharmacist about your individual care. The information reflects NHS and NICE guidance at the time of publication.

Last reviewed: 
November 2025
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