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..
Eating, physical activity, and stress can cause an increased WBC count. The WBC count tends to be lower in the morning and higher in the late afternoon. WBC counts are age-related. I would not be concerned until the results come back and you get your results. Pregnancy is associated with increased white blood cells.