Every medication, every procedure, comes with its share of side effects or dangers, some of which are missed by the most acute eyes.

The concept of breakthrough is when a fully vaccinated person later gets an infection. It is important to remember that not everyone responds to vaccines equally.

Upper GI endoscopy is a procedure in which a doctor uses an endoscope—a flexible tube with a camera—to see the lining of your upper GI tract.

Two types of NAFLD are simple fatty liver and nonalcoholic steatohepatitis (NASH). Simple fatty liver and NASH are two separate conditions.