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.
But Lincoln had sound reasons for doing it the way he did. Slavery existed because of state laws, and the president had no power to declare state laws invalid. The Supreme Court could declare a state law unconstitutional, but nothing in the Constitution as it existed in 1863 made slavery unconstitutional.