Dr. David T. Harris M.D.

Cystic fibrosis damages the lungs, digestive system, and other organs in the body. It affects the cells producing mucus, sweat, and digestive juices. It is caused due to defect in a gene. This gene changes a protein responsible for movement of salts in and out of cells. As a result, thick, sticky...

IntroductionOur lungs are one of the hardest working organs in the body. Each minute, our lungs expand and contract up to 20 times. This is done to exchange carbon dioxide with oxygen. An obstruction in this process is called as bibasilar atelectasis, which is a life-threatening condition. It...

If you have symptoms that are likely to be of chronic obstructive pulmonary disease (COPD), visit your doctor as soon as possible. You can receive a proper diagnosis if you have COPD after several breathing tests have been administered.Early detection of COPD is essential for those who may be at...

IntroductionEvery time you inhale, air enters your nose and mouth, and then flows down the throat through the air passageways called as bronchial tubes. For the air to reach the lungs, these passageways need to be open. To transport the oxygen to the tissues of the body, oxygen is passed into the...

Bronchial tubes are the airways through which air travels and reaches the lungs. The inflammation of these bronchial tubes is called bronchitis. The inflammation is more often caused by a viral infection, smoke, dust, or other irritants.Bronchitis may be due to a chest infection, inflammation of...

Life with cystic fibrosis (CF) can be draining, time-consuming, and frankly – quite expensive. A majority of people living with CF, as well as their families, are faced with complex issues, such as insurance hassles, when it comes to accessing the specialized care that they require. Although CF...