Some people may have to change parts of their lifestyle because of worsening asthma symptoms.
It can be difficult to identify exactly what triggers your asthma. Sometimes the link is very clear, for example when your symptoms start within minutes of coming into contact with a cat or pollen.
However some people have a delayed reaction to an asthma trigger.
By avoiding the triggers that make your asthma symptoms worse, and by taking your asthma medicines correctly, you can reduce your symptoms and continue to enjoy your usual lifestyle.
These videos about asthma and living with it were made by Asthma UK.
For more information on asthma, visit asthma.org.uk