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Gallstones are lumps of solid material in your gallbladder. They're formed when the digestive juice called bile gets hard like a stone. They can be as small as a grain of sand or as big as a golf ball. Your gallbladder may form one big stone, hundreds of tiny ones, or both sizes at the same time.

Encephalitis is an inflammation of the brain. It is often caused by a viral infection. The arboviruses cause encephalitis. They are passed on to people and animals by insects.

A pregnancy is divided into three phases, called trimesters. Each trimester has its own major milestones.

Life expectancy in the U.S. has increased in recent years. This has created a fairly new and growing area of healthcare and provider services, known as elder care. Elder care covers a wide variety of issues. Read on to learn more.

A brain tumor is an abnormal growth of tissue in the brain. Here are some questions you can ask your doctor about treatment.

Encephalitis is inflammation of the brain. The inflammation causes the brain to swell, which leads to changes in neurological function. It results in mental confusion and seizures. Read on to learn more.

Nearly everyone has suffered from a headache. This article discusses several types of headache, how they are diagnosed and treated.

Meningitis is inflammation of the membranes that surround the brain. Learn about the causes, symptoms, diagnosis, treatment, prevention, and more.

Multiple sclerosis is a disease in which the fatty tissue that surrounds the nerves is destroyed. When this happens, the nerves are unable to conduct electrical impulses to and from the brain. It causes muscle weakness, impaired coordination, and fatigue.