Dr. John R Shell M.D.

What is yawning?Usually, yawning is associated with boredom, fatigue, and tiredness. Yawning is also very common in animals, such as dogs, monkeys, snakes, and carnivores. Yawning is also associated with numerous superstitious beliefs.In humans, yawning is considered as a purposeful non-verbal...

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...

Allergy season would mainly depend on the underlying factor of what individuals are allergic to and where they live. If an individual is suffering from a seasonal allergy or hay fever, then tree pollens could trigger the allergic reaction in the season of spring or late winter. If you are allergic...

IntroductionTo maintain good health, balanced cholesterol levels are quite important. The liver is an organ that detoxifies drugs and other foreign substances. It also stores glycogen, which the body utilizes for energy. Other important functions of the liver include metabolizing carbohydrates,...

What is RSV?RSV or respiratory syncytial virus is a common virus that usually affects the respiratory tract. It can cause colds in adults and older children, but may cause serious lung infections, such as pneumonia or bronchiolitis in babies and immunocompromised individuals. CausesRSV is only...

What is a rib cage?A human rib cage consists of 12 pairs of ribs, which are symmetrically paired on both sides of the body. The rib cage shields the organs located in the chest region, which include the lungs and heart from any kind of damage or injury. The ribs are attached to the sternum...