Dr. William Stephan M.D.

Recommended Articles

• What Causes Pneumonia?

  Pneumonia is a lung infection that is caused by bacteria, viruses, or parasites. Moreover, pneumonia can develop in just one lobe of the right or left lung, the entire lung, or both of the lungs simultaneously. The primary characteristic of this lung disease is the inflammation of the air sacs or...

• 6 Reasons Why You Are Coughing Up Green Mucus

  IntroductionMucus is a moist film, which helps keep your nose from drying out and protect your lungs from foreign substances, such as bacteria, viruses, dust, and other harmful intruders. It keeps you healthy but you may only notice it whenever you are sick. Mucus becomes thicker when you are sick,...

• Preventing Exacerbations of COPD

  According to a statistic, 65 million people have moderate to severe chronic obstructive pulmonary disease (COPD) around the world. More than 3 million people have died because of COPD in 2005, which corresponds to 5 percent of all deaths globally. This puts COPD as one of the major causes of...

• Firefighters from Around the World Take Steps Toward Cystic Fibrosis Research

  As a firefighter, Wes Loucks received countless emergency phone calls throughout his 32 years of service for the Portland Fire and Rescue Bureau. After retiring, he received a personal call for help from his own family. His two grandsons were both born with cystic fibrosis (CF), a chronic genetic...

• What Is Duchenne Muscular Dystrophy? Causes, Symptoms, and Treatment

  Muscular dystrophies are a group of diseases that make the muscles of the body weaker over a period of time. The muscles become less flexible in this condition. Out of the nine types of muscular dystrophy, Duchenne muscular dystrophy is one of the most common.The main characteristics of this medical...

• Pulse Oximeter Use for Patients with COPD

  Pulse oximeters measure the pulse rate of an individual, which is usually marked by a small heart. This is the first number that appears while using a pulse oximeter.  It also measures the proportion of oxygenated hemoglobin in the blood within pulsating vessels. This determines the level of oxygen...