Video: The Great Migration: Definition & Causes. The economic conditions of World War I led to a massive movement of African Americans from the South to the North, known as the Great Migration. Examine the causes and effects of this phenomenon.
Physicians may want to look closer at WBC levels when obtaining the tests for other reasons, Manson notes. However, infections can cause a high white blood cell count that may make it appear that a patient is at high risk for heart disease when she is not. Therefore, routinely giving everyone the test to screen for heart disease is premature. More research needs to be done..
Yes, your heart rate increases when you are in pain, so when you hit your head then alot of blood rushes toward it, therefore making your heart beat faster and make your heart â¦ rate go up.2 people found this useful.es, it does make your heart rate increase because spicy food increases metabolism in your body and also amount of heat in your body causes blood to circulate faster, therefor â¦ e heart rate increases.