Dr. John Frederick Stock M.D.

Over the course of our four million or so years of evolution, we humans have developed a highly-specialized immune system that is quite a warrior in combating infections. We are bombarded daily by bacterial and viral pathogens which have the potential to cause us serious illness, but, completely...

It is normal to be confused about what to believe and what to buy when it comes to the different types of shampoos and conditioners that you see on market shelf. Some products claim to give you shiny hair, while others claim to help you achieve wavy and bouncy hair. There are hundreds of products...

IntroductionOrthopnea is the medical term used when referring to the occurrence of dyspnea (shortness of breath) when you are lying flat. This symptom is often a sign of heart failure. However, orthopnea can also be due to other health conditions. Dyspnea (shortness of breath) is not the same with...

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...

The cause or severity of insect bites or stings can be determined by the symptoms. Most bug bite symptoms cause itchy or painful red bumps. Other insect bites can cause welts or blisters. The following are some clues of common insect bites:...

Foot or ankle swelling is called edema. Many things, including high blood pressure and pregnancy, can cause this problem. Edema in your feet and ankles occurs when your body is unable to push blood and fluids in them up your legs, so that your ankles and feet swell. Swelling in the feet and ankles...