Dr. Guillermo D Castillo M.D.

Agoraphobia is an anxiety disorder in which you feel extremely fearful of places and situations that are uncomfortable and dangerous according to you. These are the places that make you feel trapped and assume that the escape might be difficult in the case of a panic attack, such as an elevator, a...

Inflammatory bowel disease affects an estimated 1.5 million individuals in the United States alone. Approximately 2.2 million individuals experience inflammatory bowel disease in Europe, with a comparable number of estimated cases in the rest of the world. There are many different diseases that fall...

Newly graduated nurses are often assigned what some might consider the less than desirable shift known as the night shift.  For nurses who do not work in Labor and Delivery, where babies make their own schedules, or in the ER where everything from a sore throat to a heart attack is treated in fast...

IntroductionAlthough doctors have the best intentions, it does not always mean that they will perfectly recognize their patient’s greatest need. For this reason, patients also need to take an active role when it comes to communicating with their doctor.One of the best ways to make sure that...

What is anemia?Anemia occurs when there are low levels of red blood cells (RBCs) in the body. Red blood cells are the ones that carry oxygen all over the body. So when a person's RBC count is lower than normal, it means that there is not enough oxygen in the blood, causing symptoms of anemia, such...

Introduction Pyrexia is the medical term for fever, in which the human body temperature rises above the average normal (37 degrees Celsius or 98.6 degrees Fahrenheit). Pyrexia is one of the most common symptoms of numerous medical conditions.There are multiple factors can affect the normal body...