Atherosclerosis is characterized by the thickening of the blood arteries which carry nutrients and oxygen away from the heart to other parts of the body. The arteries are usually blocked and there is a decreased flow of blood to vital organs such as liver, kidney etc. It leads to blood clots and heart attack.
This disease affects the circulatory system of the body.
This event is called A-The Long March. Great Leap Forward was a program that Mao introduced once he was Chairman. Trail of Tears was in the US and that was the forced march of Native Americans.
