Ticks and Lyme Disease: Symptoms, Treatment, and Prevention Tick-borne diseases such as Lyme disease are on the rise. Reported cases in the United States increased from about 12,000 annually in 1995 to approximately 36,000 per year from 2013 - 2016, according to the...

Description Complement component 8 deficiency is a disorder that causes the immune system to malfunction, resulting in a form of immunodeficiency. Immunodeficiencies are conditions in which the immune system is not able to protect the body effectively from foreign...

What is meningitis? What is encephalitis? Infections and other disorders affecting the brain and spinal cord can activate the immune system, which leads to inflammation.  These diseases, and the resulting inflammation, can produce a wide range of symptoms, including...

Description Hypertension is abnormally high blood pressure in the arteries, which are the blood vessels that carry blood from the heart to the rest of the body. As the heart beats, it forces blood through the arteries to deliver nutrients and oxygen to the rest of the...

Overview High blood pressure is a common disease that develops when blood flows through your arteries at higher-than-normal pressures. Your blood pressure is made up of two numbers: systolic and diastolic. Systolic pressure is the pressure when the ventricles pump...