This chronic lung disease is usually due to either a childhood infection that has compromised the lungs or another serious lung disease like COPD or cystic fibrosis. Scarring of the bronchi (branches in the lungs) makes breathing difficult and often results in a chronic cough, chest pain, wheezing, and shortness of breath.

Read what our columnist Robin Dix has to say about which essential oils she finds useful for her fibromyalgia.