Where did the name El NiÃ±o come from? Why is El NiÃ±o frequently described as a disruption of the usual situation in the tropical Pacific? Should we take El NiÃ±o forecasts with a grain of salt? Why don't you see much in the news about the causes of El NiÃ±o? Does El NiÃ±o originate solely in the tropics, or do the midlatitudes play an important role?
Thick blood is caused by a variety of conditions, such as heavy proteins in the blood, too much blood in circulation or a blood clot system imbalance, according to Southeastern Medical Oncology Center. Diseases such as cancer and lupus can also lead to thick blood. Continue Reading.
Two major types of gangrene exist: 1  Dry gangrene is caused by a reduction of blood flow through the arteries. It appears gradually and progresses slowly. 2  Wet or moist gangrene develops as a complication of an untreated infected wound. Swelling resulting from the bacterial infection causes a sudden stoppage of blood flow.