health

by Shari The Diaphragm (with ribs cut away) In my �day job� as a home health physical therapist, I see a lot of clients who have significant breathing difficulties. One of the most common breathing ailments is Chronic Obstructive Pulmonary Disease (COPD). COPD is similar to asthma in that some of the symptoms are the same but the etiology of the disease is different. Most significant is the inability to get air out and not being able to get enough oxygen in. Let me give you a bit of background about breathing and normal airways. Air travels into the lungs via the trachea. It goes down a series of branching airways called bronchi. These bronchi branch into smaller bronchioles and then into millions of tiny air sacs called alveoli. Oxygen in the air passes through the thin walls of the alveoli into the tiny blood vessels nearby, attaches to red blood cells and is carried into the blood vessels to the rest of the body. Carbon dioxide is passed out into the alveoli from the red blood cells...