Dr. Kathryn Genevieve Barnard M.D.

What is a vaccine?Vaccines are products that enable a person to develop immunity against certain diseases. A vaccine can be given through needle injections, by aerosol, or by mouth. The polio vaccine is given in the form of mouth drops that contain live but weakened organisms. The vaccine gets into...

What is polydipsia?Polydipsia is the medical term for excessive thirst. It is usually regarded as one of the initial symptoms of diabetes.It is normal to feel thirsty, especially after workouts and strenuous activities. It is quite important for people to drink the recommended amount of water per...

Petechiae are tiny dots that appear as red, brown, or purple in color beneath the skin. They are usually seen in clusters on the stomach, buttocks, arms, and legs. However, they may also appear inside the mouth or on the eyelids. Petechiae may indicate different conditions, which can range from...

A new review of studies shows that physical activity and exercise may help children to perform better in academics. According to the researchers physical activity improves the functioning of the brain and enhances thinking skills by increasing blood flow and oxygen to the brain cells. Exercise also...

What is ferrous sulfate?Ferrous sulfate is a form of iron that can be obtained through supplements. Our bodies mostly get iron through the different types of food we consume. Iron becomes a part of myoglobin and hemoglobin once it is inside the body. Myoglobin enables the storage of oxygen in...

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:...