Browse our Health Library to learn about treatments, conditions, and how Cedars-Sinai can support your healthcare needs.
Car accidents, falls, and other injuries are a common cause of acute spinal cord injury.
Alzheimer disease is a disease that affects the brain and nervous system. It is a type of dementia that happens when nerve cells in the brain die.
Amyotrophic lateral sclerosis is a fatal neurological disorder that causes progressive degeneration of nerve cells in the spinal cord and brain. It is often referred to as Lou Gehrig disease.
Astrocytoma is the most common type of brain tumor in children. It is usually low grade, which means slow-growing.
Ataxia means without coordination. People with ataxia lose muscle control in their arms and legs, which may lead to a lack of balance, coordination, and trouble walking. Ataxia may affect the fingers, hands, arms, legs, body, speech, and...
Muscular dystrophy (MD) is an inherited (genetic) disorder of the muscles. It is called a neuromuscular disease. There are several types. Becker muscular dystrophy (BMD) is a rare type.
Bell's palsy is an unexplained episode of facial muscle weakness or paralysis that begins suddenly and worsens over 48 hours. It is caused by a damaged facial nerve.
The brachial plexus can be injured in many different ways - from pressure, stress, or being stretched too far. The nerves may also be damaged by cancer or radiation treatment. Sometimes, brachial plexus injuries happen to babies during ...
A brain cyst is a fluid-filled sac in the brain. They can be benign (not cancer) or malignant (cancer).
A brain tumor is an abnormal growth of tissue in the brain. The brain is part of the central nervous system (CNS). The CNS also includes the spinal cord.
A carotid dissection is a type of tear in one of your carotid arteries. It is a common cause of stroke in people younger than age 50.
A cerebral abscess can cause your brain to swell, putting harmful pressure on brain tissue. An abscess can also keep blood from flowing to parts of your brain. If you develop this problem, you will need emergency treatment.
A cerebral aneurysm (also called an intracranial aneurysm or brain aneurysm) is a bulging, weakened area in the wall of an artery in the brain, resulting in an abnormal ballooning of the artery that is at risk for rupturing.
The vertebrae in your spine are cushioned by soft disks. When one of the disks in your neck—the cervical area of your spine—ruptures, the result can be neck pain. Watch this video to find out the possible causes and recommended treatment.
Charcot-Marie-Tooth disease is an inherited nerve defect that causes abnormalities in the nerves that supply your feet, legs, hands, and arms.
A Chiari malformation (CM) is a problem with how the brain sits in the skull. The brain normally sits fully inside the skull. With a Chiari malformation, the lower part of the brain (cerebellum) dips down through a normal opening ...
Choroid plexus papilloma (CPP) is a rare type of brain tumor. These tumors are usually not cancerous. This condition is most common in young children, but it can also occur in adults.
Chronic inflammatory demyelinating polyradiculoneuropathy is a rare autoimmune disorder that attacks the myelin sheaths around nerve cells.
Cluster headaches are uncommon, but when they occur, they bring on severe head pain. The pain is constant, focused in and around one eye. This video discusses the possible causes of this type of headache and recommended treatments.
Cluster headaches are rare and cause severe pain that tends to recur in the same way each time. Cluster headaches occur in groups, or clusters, and each attack last about 1 to 3 hours on average.
A concussion is an injury to the brain caused by a blow to the head, or by striking the head on another object. It may result in loss of consciousness or confusion, but the effects usually resolve in a few hours or days. This video ...
A mild concussion is caused by a blow or jolt to the head.
Craniosynostosis is a condition where one or more of the bones of the skull close too early. This can cause problems with normal brain and skull growth.
Dementia with Lewy bodies (DLB) is a form of progressive dementia. It's caused by the decay or deterioration of the tissues in the brain.
Distal muscular dystrophy (DD) is a group of rare diseases that affect your muscle. It usually appears between ages 40 and 60, but it can sometimes show up as early as the teen years.
Dystonia is a body movement disorder. It causes your muscles to contract, move involuntarily, or get stuck in an abnormal position.
Alzheimer disease most commonly affects older adults. But it can also affect people in their 30s or 40s. When Alzheimer disease occurs in someone younger than age 65, it is known as early-onset (or younger-onset) Alzheimer disease.
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.
An epidural abscess is an infection that forms in the space between your skull bones and your brain lining (intracranial epidural abscess).
Epilepsy is a seizure disorder that affects thousands of adults and children. A seizure is when the brain has a burst of abnormal electrical signals over a short period of time. These signals cause the body and brain to react in certain ...