Night shift workers who have trouble sleeping may have a condition known as shift work sleep disorder. âWorking non-traditional shifts interferes with the bodyâs circadian rhythms,â says sleep expert Tina Waters, MD. âMost of us are awake during the day because our bodyâs internal clock is keeping us awake.
Election to Congress in 1854 and the Mexican War brought the issue of the expansion of slave territory to the nation's attention. Lincoln formed a clearer position on slavery. He was opposed to black equality and had no intention of disturbing slavery in slave states.
Abraham Lincoln, for instance, while serving as a one-term Congressman in the late 1840s, was opposed to the Mexican War, which he believed was a pretext for expansion. And in the decades following the acquisition of western territory, the concept of manifest destiny has been continually analyzed and debated.