Dyspnea is shortness of breath. It’s a very common symptom in a lot of illnesses and conditions. People think of COPD or interstitial lung disease or pulmonary hypertension, but it can also go along with conditions like heart failure and cancers. And really there can be so much suffering that goes along with the shortness of breath. It causes anxiety and depression, and dependence on others for help around the house and doing errands and and it just can make people feel so terrible. What amazes me about a lot of patients I meet.