Dr. Mark A. Kalish M.D.

What is HIV?HIV is a virus that was discovered in the 1980s. It attacks a person's immune system, causing it to be too weak to fight outside infections. The HIV virus works by destroying white blood cells, called CD4 cells, in the immune system, and progresses through three stages, the last of which...

Over 40 million Americans suffer from rheumatoid arthritis, osteoarthritis, or related forms of arthritis. That’s one in eight people in America alone who have arthritis, and this number has increased by about 40 percent within the last 10 years.Arthritis (or inflammation of the joints) may be one...

Many may know Shannon Miller was an Olympic champion in the 90s, but many don't know that she is also an ovarian cancer survivor. While she was crucial to the American Olympic Team, she is now teaming up with TESARO to spread awareness and support for the ovarian cancer community.More about Shannon...

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...

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...

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...