Brain and Nervous System Medical Reference

AADC deficiency is an ultra-rare genetic disorder that affects how your cells send signals to each other. Learn more about this disorder's symptoms, causes, diagnosis, and treatment.

There’s no cure for myasthenia gravis, but there are many things -- from medication to surgery -- that can help ease your symptoms.

If you have myasthenia gravis, you could develop a serious complication that affects your breathing. Myasthenic crisis is when your lung muscles get suddenly very weak. Find out the possible triggers of myasthenic crisis and what to do to get treatment right away.

What’s safe to eat if you have myasthenia gravis? Find out which foods are easy to chew, gentle on your stomach, and healthy for your bones. Learn how to sit during meals to prevent choking or coughing.

For some people, myasthenia gravis increases the risk of injuries at home. Consider these simple changes to reduce your risk of falls, bumps, and scrapes due to muscle weakness or vision problems.

Find out more about how myasthenia gravis leads to double vision and what you can do to live with it.

When you have myasthenia gravis, it’s important to make the most of your limited energy. These tips, tools, and life hacks can help you feel stronger, longer.

Neuromyelitis optica, or NMO, is a rare disease that mostly affects your eyes and spinal cord. It’s also known as Devic's disease.

You may feel AHP in a different way than someone else. And your doctor may mistake your symptoms for another disease. Learn what to look for.

How you treat acute hepatic porphyria depends on your symptoms. Learn how those treatments can help you feel better and prevent attacks.

Acute hepatic porphyria is one of a group of disorders that are triggered by a buildup of natural chemicals in your body. It can cause nerve problems and other symptoms.

If you have acute hepatic porphyria, the proper diagnosis is crucial. Here's how that happens.

Both short-term and long-term complications are possible from acute hepatic porphyria. Learn more about what you can expect.

Spinal muscular atrophy is usually diagnosed with a simple blood test. If genetic testing isn’t able to confirm SMA, there are other ways to see if your child has this disease that makes muscles weak.

If there’s a chance you might carry the gene for spinal muscular atrophy, you can take screening tests before you try to have a baby or when you are pregnant.

Muscle weakness could be a sign of spinal muscular atrophy, which can strike all ages but is the No. 1 genetic cause of death in infants. Here's what it is and what you can do about it.

If you have spinal muscular atrophy, the symptoms you have depend on the type of the disorder you have. Learn more.

Since SMA destroys motor neurons and weakens your muscles, people with SMA can have complications. Learn what they are.

Spinal muscular atrophy is sorted into types, depending on the age and development milestones reached when symptoms first start.

If you or your child has spinal muscular atrophy (SMA), a team of many different medical professionals can help you manage your symptoms.

How your spinal muscular atrophy (SMA) changes over time depends on many things. Learn what you can expect.

There’s no cure for spinal muscular atrophy (SMA) yet. But if you or someone you love has SMA, treatment options are available. Learn more.

Find out what happens when you have a nervous system disease called multiple system atrophy (MSA) and learn how to manage the symptoms.

Encephalopathy happens when a change in your body or your brain affects how well you think. Learn the causes, symptoms, treatments and more.

Learn what conditions can make you feel dizzy and nauseated, and what other symptoms you might have with them.