Dr. John G Highfill M.D.

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 ABO (A, B, AB, or O) blood group system is used to classify different types of antibodies in the plasma and antigens in the red blood cells (RBCs). The ABO blood group and RhD antigen determine the type of blood that is a perfect match for blood transfusions. The four ABO blood groups are: ...

How Can I Lower Cholesterol Levels?Lowering the levels of cholesterol goes a long way in reducing the risk of heart disease and aids in a longer, healthier life. But is it easy to lower the levels of ‘bad’ cholesterol (LDL cholesterol) in blood? Before we begin, please remember that cholesterol...

What are vaccine exemptions?There are state laws that establish compulsory vaccination for school children both studying in public and private schools as well as daycare facilities. However, certain exemptions may be offered for religious and personal or conscientious reasons in some states. What...

IntroductionWhen people say salt, they usually mean the common table salt. Salt is a mineral that is mainly composed of sodium chloride (NaCl). To distinguish table salt from a class of chemical compounds called salts, the terms rock salt or the mineral name halite is used. Sodium is also...

You probably want to lose visceral fat for improved health. Visceral fat is the fat located deep inside the abdomen. It has several components, which include fat in the intestines (mesenteric fat), around the kidneys (intrarenal fat), and some bits of fat near the uterus or testes. Unlike other...