Anyone who has laid awake in bed staring at the clock, mentally calculating how many hours of sleep they will get if they fall asleep right now, knows the struggle of insomnia. The sleep disorder is ...

Acute cholangitis, also known as ascending cholangitis, is a serious disorder of the biliary system, which can be life-threatening, if left untreated. The most frequent reason of obstruction of the ...

Acute coronary syndrome (ACS) is an umbrella term for a range of conditions that cause reduced blood flow to your heart. Acute coronary syndrome symptoms may vary, but the underlying cause is a ...

Acute kidney injury (AKI), previously called acute renal failure, is when the kidneys are suddenly unable to filter waste products from the blood. This condition can develop slowly or quickly, and ...

Acute angle-closure glaucoma is a rare but serious type of glaucoma. This condition occurs when drainage canals in the eye become blocked. If a person does not get treatment, acute angle-closure ...

This kind of blood clot in the leg can lead to a fatal pulmonary embolism. Anticoagulant medications and compression stockings can help prevent acute thrombosis and prevent complications. As a blood ...

Cases of acute flaccid myelitis, a polio-like syndrome that can cause paralysis or muscle weakness in children, appear to be on the upswing this year. Subscribe to read this story ad-free Get ...

Acute undifferentiated leukemia is a very rare type of aggressive leukemia — a type of cancer. It’s a very serious condition because researchers don’t know much about it. Leukemia is a type of cancer ...

AIP is a rare genetic disorder affecting heme production, leading to a buildup of porphyrin precursors that can trigger acute episodes. AIP symptoms can range from abdominal pain and nausea to nerve ...

Acute stress disorder (ASD) is a recognized psychological disorder that can occur after a traumatic event. ASD differs from PTSD in that it occurs soon after a traumatic event and lasts no more than ...

Unlike the other definitions, the definition of the Asian Pacific Association for the Study of the Liver does not include extrahepatic organ failures. 2,14,15 Rather, the definition is based on the ...