Skip to main content
Logo for WebMD
Logo for WebMD
  • Check Your Symptoms
  • Find A Doctor
  • Find Lowest Drug Prices
  • Health
    A-Z
    Health A-Z
    Health A-Z

    Common Conditions

    • ADD/ADHD
    • Allergies
    • Arthritis
    • Cancer
    • Cold, Flu & Cough
    • Depression
    • Diabetes
    • Eye Health
    • Heart Disease
    • Heartburn/GERD
    • Pain Management
    • Sexual Conditions
    • Skin Problems
    • Sleep Disorders
    • View All

    Resources

    • Symptom Checker
    • Expert Blogs and Interviews
    • Message Boards
    • Insurance Guide
    • Find a Doctor
    • View All
    • Featured Topics

    • man in silhouette and brain Video Learn the F.A.S.T. Test for Stroke
    • knee replacement Video See Inside Knee Replacement Surgery
  • Drugs &
    Supplements
    Drugs & Supplements
    Drugs & Supplements

    Find & Review

    • Drugs
    • Supplements

    Tools

    • Manage Your Medications
    • Pill Identifier
    • Check for Interactions

    Drug Basics & Safety

    • Commonly Abused Drugs
    • Taking Meds When Pregnant
    • Featured Topics

    • marijuana leaves News How and When Medical Marijuana Is Used
    • omega 3 capsuls Slideshow Vitamins & Minerals From A - Zinc
  • Living
    Healthy
    Living Healthy
    Living Healthy

    Diet, Food & Fitness

    • Diet & Weight Management
    • Weight Loss & Obesity
    • Food & Recipes
    • Fitness & Exercise

    Beauty & Balance

    • Healthy Beauty
    • Health & Balance
    • Sex & Relationships
    • Oral Care

    Living Well

    • Women's Health
    • Men's Health
    • Aging Well
    • Healthy Teens
    • Fit Kids
    • Featured Topics

    • shot glass Video Can Mezcal Lower Blood Pressure?
    • doctor examining patient Slideshow Why Did Your Doctor Do That?
  • Family &
    Pregnancy
    Family & Pregnancy
    Family & Pregnancy

    All About Pregnancy

    • Getting Pregnant
    • First Trimester
    • Second Trimester
    • Third Trimester
    • View All

    Parenting Guide

    • Newborn & Baby
    • Children’s Health
    • Children’s Vaccines
    • Raising Fit Kids
    • View All

    Pet Care Essentials

    • Healthy Cats
    • Healthy Dogs
    • View All
    • Featured Topics

    • boy throwing paper airplane Slideshow Symptoms of ADHD in Children
    • Sad dog and guacamole  Slideshow Foods You Shouldn't Feed Your Dog
  • News &
    Experts
    News & Experts
    News & Experts

    Health News

    • Recurring Gut Infections on the Rise
    • Snortable Chocolate Raises Concerns
    • Flesh-Eating Bacteria Warning
    • Daily Coffee May Help You Live Longer
    • Sleep Disturbances Linked to Alzheimer’s Risk

    Experts & Community

    • Message Boards
    • Expert Blogs
    • News Center
    • Featured Topics

    • water dripping from faucet Special Report Hidden Threat of Lead in Pipes
    • man using computer mouse Newsletters Sign Up to Receive Our Free Newsletters
  • Mobile Apps
  • Subscriptions
  • Sign In
  • Subscribe
  • My Profile
    • My Tools
    • My WebMD Pages
    • My Account
    • Sign Out

    Brain & Nervous System Home

    • News & Features
    • Reference
    • Slideshows
    • Quizzes
    • Videos
    • Message Board
    • Find a Neurologist

    Related to Brain & Nervous

    • ADHD
    • Alzheimer's Disease
    • Autism
    • Bell’s Palsy
    • Concussion
    • Creutzfeldt-Jakob Disease
    • Epilepsy
    • Guillain-Barré Syndrome
    • Lou Gehrig’s Disease (ALS)
    • Multiple Sclerosis
    • Parkinson's Disease
    • Restless Legs Syndrome
    • Spinal Muscular Atrophy
    • Stroke
    • More Related Topics
    • Brain & Nervous System

    Brain and Nervous System Videos

    • Video on Vertigo Symptoms, Causes, and Treatments

      Feel like you’re spinning? You might have vertigo. What’s to blame for your dizziness?

    • michael smith, md Powassan Virus

      The Powassan virus is spread by ticks. Could it be worse than Lyme disease?

    • brain illustration Brain Training

      Learn about how brain training may help with cognitive development in children and adults.

    • man sitting on couch ALS Stem Cell Trial

      One man’s risky chance to help cure a fatal disease.

    • lab needle Exploring Advances in MS Treatments

      Emerging data offers hope that more effective treatments for Multiple Sclerosis could be just around the corner.

    • woman demonstrating exercises Exercises for MS

      Learn the best exercises for your MS.

    • doctors looking at brain scans Where to Start After a MS Diagnosis

      A diagnosis of multiple sclerosis can be scary. Here's how to tackle your condition head on.

    • man smiling What Can You Expect Next?

      Understand your MS and what the future has in store.

    • brain scan Be Empowered With Your MS

      Multiple sclerosis can come with an array of challenges through the years, but there are things you can do to help you on your journey.

    • woman swimming How to Manage MS Flare-Ups

      Tips to manage exacerbations and flare-ups with MS.

    • mother and daughter Lead a Healthy, Active Life With MS

      What changes do you need to make to control a MS flare?

    Today on WebMD

    nerve damage

    What Is Multiple Sclerosis?

    Learn how this disease affects the nervous system.

    senior woman with lost expression

    Memory Loss and Alzheimer's

    Know the early warning signs.

    woman in art gallery

    Keep Your Brain In Good Shape

    Tips to stay smart, sharp, and focused.

    medical marijuana plant

    Medical Marijuana

    What is it used for?

    Recommended for You

    woman embracing dog Quiz

    How Much Do You Know About Touch?

    boy hits soccer ball with head Slideshow

    How Head Injuries Hurt Your Brain

    red and white swirl Article

    Vertigo: Types, Causes

    marijuana plant ARTICLE

    Medical Marijuana: Can It Treat MS?

    brain illustration stroke Slideshow

    What Is a Stroke?

    nerve damage Slideshow

    MS Symptoms & Causes

    Alzheimers Overview Slideshow

    Signs of Alzheimer's Disease

    Graphic of number filled head and dna double helix Quiz

    How Well Do You Know Your Brain?

    Tools & Resources

    • Caregiver's Guide to Alzheimer's
    • Stroke Explained in Photos
    • Parkinson's Disease Overview
    • Manage Your MS Symptoms
    • Treating and Preventing Migraines

    Health Solutions

    • Knee Pain Management
    • Bent Fingers?
    • Cancer Treatments
    • Online Hearing Test
    • Managing Diabetes
    • Expert Orthopedic Care
    • Cancer Support
    • Treat Pet Anxiety
    • Advanced Breast Cancer
    • Care for Valve Disease?
    • Pet Food Facts
    • Hearing Loss Help
    • Ringing in the Ears
    • Find Infant Formula
    • Aortic Valve Stenosis

    More from WebMD

    • The Stress of Caregiving
    • Healthy Cat Tips
    • Immunotherapy for Cancer
    • What Is CIDP?
    • Multiple Myeloma
    • 8 Ways to Avoid Heart Attack
    • Treatments for Cancer
    • Living Better With Migraine
    • Foods That Cause Acid Reflux
    • Tips for Your Dog's Health
    • Diabetes Assessment
    • Avoid Allergy Triggers
    • Treating Advanced Prostate Cancer
    • 5 Things That Spike Your Blood Sugar
    • Logo for WebMD
      • Visit WebMD on Facebook
      • Visit WebMD on Twitter
      • Visit WebMD on Pinterest
    • Policy

      • Privacy Policy
      • Terms of Use
      • Contact Us

      About

      • About WebMD
      • Careers
      • Newsletter
      • Corporate
      • WebMD Health Services
      • Site Map
      • Accessibility
    • WebMD Network

      • Medscape
      • Medscape Reference
      • MedicineNet
      • eMedicineHealth
      • RxList
      • OnHealth
      • BootsWebMD
      • First Aid
      • WebMD Magazine
      • WebMD Health Record
      • Dictionary
      • Physician Directory
    • Our Apps

      • WebMD Mobile
      • WebMD App
      • Pregnancy
      • Baby
      • Allergy
      • Pain Coach
      • WebMD Magazine
      • Medscape
      • TheHeart

      For Sponsors

      • Advertise with Us
      • Advertising Policy
      • Sponsor Policy
    • URAC Seal
    • TRUSTe Privacy Certification
    • TAG seal
    • Honcode Seal
    • Adchoices

    © 2005 - 2017 WebMD, LLC. All rights reserved.

    WebMD does not provide medical advice, diagnosis or treatment.

    See additional information.

    Cancer Treatment & Nutrition
    11 Tips to Control Diabetes