Dr. David Jay Harper M.D.

There are conditions that we experience or live with in our life. Moreover, we tend to assume that most of them are normal or of no much importance. Some of these conditions or feelings in our bodies may later cause bigger problems and it is necessary to understand them and their sources. It is also...

Chronic Obstructive Pulmonary Disease (COPD) and lung cancer are two ends of the same spectrum. Though vastly different in core characteristics, they share many symptoms such as painful wheezing, a persistent cough, and the production of copious mucus. Both these diseases have similar causes and...

The inflammation of the sinuses and nasal membranes is what is referred to as sinusitis. The sinuses are the openings located in the facial bones that are linked to nasal openings. Mucous membranes that surround the sinuses are the same as those found in the interior of the nose. You probably have...

Influenza is a respiratory ailment caused by influenza viruses. Influenza is considered as one of the fatal viruses because it can cause death if not medically and properly addressed. Flu can be very contagious and is very likely to spread from one person to another through coughing, sneezing, or...

What is mono?Mono is the short form of the disease called infectious mononucleosis. It is also popularly called as the "kissing disease". It is a very common disease, typically caused by the Epstein-Barr virus (EBV). It leads to extreme tiredness and feelings of weakness for several weeks or...

What is rubella?Rubella is a contagious viral disease that is characterized by red rashes on the skin. The condition is also called German measles, although it is not caused by the virus that causes measles. Aside from a widespread skin rash, individuals who have rubella also have swollen lymph...