Did you know cancer is responsible for 1 in 4 deaths in the United States? Or that cancer is the second leading cause of death in the U.S?
Severe nausea occurs when a person feels extremely sick to his stomach. It is typically a symptom of a problem, such as an illness, and is not an illness in and of itself. The nausea often feels intolerable and is persistent. At times, it may appear with no warning, depending on the cause of the nausea.