Dr. John Dennis Mull MD MPH

What is Addison’s disease?One of the ways in which the body maintains proper balance is by using certain chemical messengers called as hormones. This done so to regulate various functions in the body. There is a small adrenal gland present above each kidney. These glands work to produce hormones,...

Gastroenteritis is an intestinal infection that is caused by poorly prepared foods, contaminated water, etc. It can cause diarrhea, nausea, headache, and vomiting.What causes it?Gastro is caused by viruses. They include:• Rotavirus• AdenovirusHow is the gastroenteritis virus passed?Children can...

What is athlete’s foot?Athlete’s foot is a type of fungal infection that affects the feet or toes. This fungal infection is medically known as tinea pedis. The fungus that causes the infection usually feeds on keratin or the skin protein. Keratin is found in the skin's top layer, including...

The Nature of Cancerous CellsEvery cell in the human body is programmed to carry out a specific role. For example, a red blood cell carries oxygen to tissues, a white blood cell wards off infection, and an intestinal cell absorbs nutrients in the digestive tract. All these cells are programmed to...

What is a urinary tract infection?The main function of the urinary system is to get rid of waste, maintain the body’s water balance, and regulate electrolytes. Its function starts with the kidneys, the organ that filter blood to produce urine, which is composed of extra fluid and wastes. Before...

Hematuria is the phenomenon in which traces of blood appear in the urine. It presents a unique problem because it is not a disease in itself. It is not infectious, nor is it capable of threatening a life. It is merely a warning sign that something is wrong inside the body. Though frightening in...