Asthma in pictures
 
To help you understand asthma and how it affects your airways and lungs, as well as how certain treatments may help, click on the play button below.
 
 

Click here to view a PDF version of this animation, which you may find useful for printing or downloading. 
 
PDF files can be viewed with Adobe Acrobat Reader version 6.0 or greater. If you do not have this viewer installed, you can download it from Adobe's website.