Dr. Nancy C. Lewis M.D.

Recommended Articles

• Children Who Have Low Levels of Vitamin D Are at Risk for Infection

  A new study has shown that infants who are 3-months-old and have vitamin D levels lower than 25 nanomoles per liter (nmol/L) are two times more likely to have respiratory infections, when compared to children who have levels above 75 nmol/L. In this study, published in the journal Pediatrics,...

• What Are the Early Signs of Lung Cancer?

  Lung cancer allows a five-year survival limit, and that is if the disease has not spread elsewhere in the body. This is all the more reason to be alert to early warnings of cancer’s approach. With early detection, cancer survival ratings improve remarkably.1.   Misery and mood swingsCarrying the...

• What Is Bibasilar Atelectasis?

  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...

• What Is Tay-Sachs Disease?

  IntroductionTay-Sachs disease is a genetic disorder that affects the brain's nerve cells. Individuals who have this disorder lacks a type of protein that is needed to break down fatty substances in the brain. Without this protein, fatty substances accumulate in the brain to toxic levels, which...

• Prevention of Croup

  Croup is a viral infection that causes swelling of the airway. As a result, the airway becomes narrower, making it difficult to breathe. It is also accompanied by an irritation in the larynx (voice box) and trachea (windpipe). This condition is also known as laryngotracheobronchitis because the...

• Home Treatments for Croup

  Children, especially the younger ones are prone to have croup. It is a viral infection that causes swelling and inflammation of the vocal cords. Croup is characterized by a bad cough that resembles a barking seal and difficulty in breathing. The virus that causes croup is also the same virus that...