Dr. David N Johnson MD

Recommended Articles

• Is Bronchitis a Contagious Disease?

  The human respiratory tract starts at the nose and mouth and continues down to the lungs. The air that we breathe in through our nose and mouth passes down the trachea and into the lungs through a series of branched tubes called the bronchi. For a healthy breathing to happen effectively, these tubes...

• Symptoms of Mono

  Mono SymptomsInfectious mononucleosis is the technical and formal name of the disease commonly known as "mono". This disease is typically caused by the Epstein-Barr virus (EBV), but it can also be caused by other viruses such as cytomegalovirus. Once a person becomes infected, the symptoms may...

• Foods That Can Relieve Nausea

  Nausea is a very unpleasant condition that is known as a feeling of sickness or uneasiness. Nausea is often a precursor to vomiting, and nearly everyone suffers from nausea at some point. Nausea can have a variety of different causes such as food poisoning, dehydration, motion sickness, morning...

• What Complications May Occur If Bronchitis Goes Untreated?

  Acute bronchitis may not cause any complications if it occurs the first time in a person. It usually goes away by taking proper rest after about two to three weeks. However, if bronchitis is left untreated, it can affect the respiratory system and damage the airways and lungs. Because of this...

• Are Vitamin D-Rich Foods Better than Vitamin D Supplements?

  What is vitamin D?Vitamin D is a unique fat-soluble vitamin that plays a significant role in many aspects of health. Also referred to as the sunshine vitamin, it stands out from other types of vitamins since the body can produce vitamin D through sunlight exposure. With 20-25 minutes of daily sun...

• What Could Itchy Palms Mean?

  Although an itchy palm is rarely caused by serious conditions, it can also indicate a chronic skin problem that requires frequent treatment.Your doctor can help diagnose your condition by identifying other symptoms you experience and what causes your itchy palm. Your doctor will recommend or...