Understanding how your brain and nervous system function can help you recognize the symptoms of conditions that affect them. Learn about diagnostic tests, associated diseases, and treatment options.
A healthcare provider with brain scan images
The Anatomy of the Central Nervous System
Stressed man
Can Stress Cause Seizures?
Speech therapist checking man's throat
Expressive Aphasia: What to Know About Communication Disorders
Bottles of clonazepam and diazepam medication on a pharmacy shelf
Which Medications Cause Sundowning Symptoms?
How Long Does Aspirin Stay In Your System?
Woman with leg pain
Living With Femoral Neuropathy: Managing Pain Symptoms
Woman doing yoga
Where Is My Solar (Celiac) Plexus?
Older woman pointing at photograph and sharing the memories with her family.
Hyperthymesia: More Than Just a Good Memory
Woman listening to music
Synesthesia: What to Do When One Sense Comes Through as Another
Man sitting at a table, looking out a window while sipping a beer
Does Alcohol Cause Inflammation?
A radiologist reviews human brain MRI scan on computer
Here's What Elon Musk's Neuralink Brain Chip Is Supposed to Do
Senior man and nurse looking at photo album in the living room in a nursing home
Cognitive Decline Symptoms in Young and Older Adults
Young adult woman, and young girl sitting outdoors in a field doing a crossword puzzle.
12 Ways to Improve Memory and Concentration
A close-up shot of a woman in bed in her pajamas in the morning. She has a headache and feeling sad
Why Are You Waking Up Dizzy?
Blue pill on dark blue background
Klonopin (Clonazepam) Side Effects
African-American female patient visiting doctor office telling about symptoms. Medical consultation - stock photo
What Is Somatostatin?
Bottles of gabapentin moving through the packaging process
Epilepsy Medication: Types and Available Options
Two friends running one in wheelchair
Effects of Spina Bifida in Children and Adults
A healthcare provider assists a man using a walker
Spinal Cord Injury: Emergency Signs and Long-Term Care
Girl wearing multi-colored sweater looking out the window
What Is the Sympathetic Nervous System?
An image of a male with tree man syndrome
What Is Tree Man Syndrome?
A baby with six toes on each foot
What Is Polydactyly?
Healthcare provider sits across the table from a couple reviewing medical information
What Is XYY Syndrome?
Image of a baby's hand holding an adult's finger
What Is Triple X Syndrome?
Person stretching their fingers while working at desk
What Is Charcot-Marie-Tooth Disease (CMT)?
football players colliding on the field
What Is a Concussion?
Patients holding hands
What is Psychomotor Agitation?
An elderly man looking at black and white photos
Déjà Vu: Definition, Causes, Risk Factors and Treatment
Woman talking to healthcare provider with a clip board
What Is Tethered Cord Syndrome?
images of brain
What Is Amnesia?
Mother checking her son's body temperature using thermometer
What Is Febrile Seizure?
Close up of older person's eye
What Is Locked-In Syndrome?
Healthcare provider looking at brain scans
What Is Hydrocephalus?
Man talking to woman neurologist
What is Progressive Bulbar Palsy?
Doctor talking to older man in examination room
PLS vs ALS: What Are the Differences?
muscle stiffness
What Is Friedreich's Ataxia?
Someone holding a water glass having a motor tic.
Motor Tics
Senior couple holding hands with a cane in one hand.
What Is Superficial Siderosis?
Woman talking to doctor
Brain Tumor Facts and Statistics: What You Need to Know
Person with restless leg syndrome
Using a TENS Unit to Treat Restless Legs Syndrome
Female doctor explains brain injury to mature man after stroke - stock photo
Brain Damage: An Overview
human brain with highlighted corpus callosum
What Is Marchiafava-Bignami Disease?
A disabled man is sitting in a wheelchair.
Paralysis: Everything You Need to Know
woman thinking
What Is a False Memory?
sobriety tracker
How Getting Sober Enabled Me to Confront My Mental Health Issues
impact of alcohol
The Impact of Alcohol on Your Body
Doctor performing brain surgery on patient
What Is Intracranial Hypotension?
Close-up two men clinking glasses of whiskey drink alcohol beverage together at counter in the pub
What Is Alcoholic Neuropathy?
tingling hands
Tingling in the Hands
Couple planning finances and projects is an example of executive function
What Is Executive Function and How Can You Improve It?
Woman with headache talking to doctor about meningitis
Causes and Treatment of Spinal Meningitis
young children in classroom
Cognitive Development Theory: What Are the Stages?
man using scissors
Types of Apraxia and How They Are Treated
Post Electric Shock Syndrome
What Is Post Electric Shock Syndrome?
Nuerons
What Are Neurons?
Black woman with long braided hair itching her scalp with both hands.
Why Is My Scalp Tingling?
Close up of a doctor having an appointment with a patient with leg pain
Why Is My Leg Shaking?
An illustration of a person sitting up in bed early in the morning
Nocturnal Seizures: Everything You Need to Know
Confused women
What Causes Dissociative Amnesia?
Graphic shows how the stress response system works starting with the hypothalamus and ending with cortisol release.
What Is Cortisol?