For example, panic attacks, particularly those that occur at nighttime, may result in lightheadedness, which can in turn cause dizziness and hyperventilation. Patients with post-traumatic stress disorder may also feel dizzy when lying down, although this is rare.
Introduction. The Great Migration, or the relocation of more than 6 million African Americans from the rural South to the cities of the North, Midwest and West from 1916 to 1970, had a huge impact on urban life in the United States.he Great Migration also began a new era of increasing political activism among African Americans, who after being disenfranchised in the South found a new place for themselves in public life in the cities of the North and West.
The Second Great Migration, between 1940 and 1970, brought 5 million black Southerners North and West. By 1970, 47 percent of the nation's African Americans lived outside the South, and more than 80 percent were urban.ome 1.5 million people moved north between 1916 and 1930 during the Great Migration when the war industry offered industrial jobs to African Americans. Thus began the transformation of the African-American population from a predominantly rural to a predominantly urban people.