Asthma and the body
When you breathe, air travels into your lungs and through your airways. People with asthma have over-sensitive airways which react to certain triggers.
A healthy airway allows normal breathing to occur.
- The lining is normal
- The outer muscle is relaxed
- The airway is wide open
An airway with asthma makes breathing difficult.
- The airways become over-sensitive and react to triggers
- The muscle around the outside of the airway tightens up
- The lining becomes swollen and inflamed, making more mucus