Brain and Nervous System Slideshows

These drinks might improve your energy level, cut down on brain fog, and help you concentrate.

If you plug your nose, nothing tastes the same. Taste and smell issues are common with age and allergies, but they could also be a sign of something more serious.

Myasthenia gravis is a condition that causes weakness in your muscles. Find out more about the symptoms of the disease and what you can do about it.

What medical conditions are known to cause auditory or visual hallucinations?

If your doctor says you need to get a spinal tap, these are some of the reasons why -- and what you can expect when you get this procedure.

Feeling lightheaded, dizzy, woozy, or unsteady? Find out what’s behind those symptoms.

You may have heard about vitamins or supplements that say they can help brain health. Is that for real? Find out what the research shows.

Right- and left-handed people can differ in very noticeable ways. Find out how and why.

The brain doesn’t always stay the same. Mental disorders, health issues, and lifestyle habits can alter the way it looks and works.

You probably know exercise is good for your health, strength, and endurance, but did you know it’s good for your brain, too? Find out how.

Learn about the causes, symptoms, and treatments of the different types of meningitis, including those caused by viruses and bacteria.

Misophonia is when certain sounds are unbearable or painful for you but not for others. Learn about this unusual condition and what you can do about it.

Find out from WebMD how vertigo, Meniere's disease, labyrinthitis, and other problems can make it hard for you to keep your balance.

Sometimes your muscles seem to have a mind of their own. WebMD explains what could be behind your twitches, spasms, and cramps.

An aneurysm is a weak spot in one of your brain’s arteries. Find out more from WebMD about how they happen and how they’re treated.

Your nervous system controls everything from your heartbeat to your emotions. See where the different parts are and what they do with this WebMD slideshow.

Feeling a little “foggy” in the head? Having trouble remembering things? You may have something called “brain fog.” Check out a few things in this WebMD slideshow that can cause it.

See the types of medical marijuana and find out what conditions it can treat in this WebMD slideshow.

What happens when you hit your head hard? This WebMD slideshow shows you how the brain reacts to and recovers from blows.

Who hasn't had an ice cream brain freeze, or been awakened by the pain of a charley horse? What's behind these weird body quirks, anyway? Find out by taking this WebMD quiz.