Conditions list medically reviewed by George Krucik, MD, MBA
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.
Encephalitis is inflammation of the brain tissue. It's most often caused by viral infections. In some cases, bacterial infections can also cause encephalitis.
Learn about carbon monoxide poisoning and what causes it. Find information on carbon monoxide symptoms, diagnosis, treatment, and prevention.
Meningitis can affect you differently depending on your age. Learn more about the symptoms and risk factors for each age group.
This feature is for informational purposes only and should not be used to diagnose. Please consult a healthcare professional if you have health concerns.