Psychosis is a serious mental disorder characterized by thinking and emotions that indicate that the person experiencing them has lost contact with reality.
Find out all you need to know about schizophrenia, including early symptoms and treatment options.
Alzheimer's disease (AD), the most common cause of dementia, is a progressive brain disorder. Learn about the causes, signs and research being done about AD.
Find out what you need to know about dementia, and learn how it's different from ordinary aging.
Alcohol withdrawal delirium (AWD) is the most serious form of alcohol withdrawal. Here's what you need to know.
Low blood sodium, or hyponatremia, occurs when water and sodium are out of balance in your body. It can cause weakness, headache, nausea, and muscle cramps.
Epilepsy is a chronic disorder that causes unprovoked, recurrent seizures. Find out what causes it, who's at risk, how it's diagnosed, and more.
Narcolepsy is a disorder of the nervous system that causes drowsiness and sleep attacks. Read more about this disorder.
Here's what you need to know about migraine types, symptoms, triggers, and treatments as well as how they're different from regular headaches.
The recommended amount of caffeine is usually 400 mg per day for healthy adults. Caffeine overdose may occur if you ingest more than this amount.
Marijuana is the most commonly used illicit drug in the United States. Uncontrollable or overly frequent marijuana consumption may indicate abuse or addiction.
Hypoglycemia, or low blood sugar, is a potentially dangerous condition that's most common in people with diabetes. Learn what causes it and how to prevent it.
Cryptococcal meningitis is a fungal infection and inflammation of the membranes covering your spinal cord and brain. Lean more.
The brain disorder Wernicke-Korsakoff syndrome (WKS) is actually two separate conditions that can occur at the same time. Get more facts here.
The human brain works by sending electrical signals through neurons, which are nerve cells. A seizure occurs when there's a surge in this electrical activity.
Primary cerebral lymphoma, or brain lymphoma, is a rare cancer that starts in the lymph tissues of the brain or spinal cord.
Creutzfeldt-Jakob disease is an infectious disease that causes the brain to degenerate. Learn about causes, symptoms, and its connection to "mad cow disease."
Schizoaffective disorder is a rare psychological disorder. Learn the symptoms of this condition, and how it's diagnosed and treated.
This feature is for informational purposes only and should not be used to diagnose. Please consult a healthcare professional if you have health concerns.