The term heart disease is often used interchangeably with the term cardiovascular disease.. Cardiovascular disease generally refers to conditions that involve narrowed or blocked blood vessels that can lead to a heart attack, chest pain (angina) or stroke.iseases under the heart disease umbrella include blood vessel diseases, such as coronary artery disease; heart rhythm problems (arrhythmias); and heart defects you're born with (congenital heart defects), among others.
The Zhou Dynasty was the longest ruling Chinese dynasty. It lasted from 1122-255 BC. The Qin Dynasty was the shortest ruling Chinese dynasty. It lasted only 15 years. Emperor Kangxi, the second emperor of Qing Dynasty, was the longest-reigning emperor in the history of China. He ruled China for 61 years during the years from 1661 to 1722. Emperor Modi of Jin (1234), the last emperor of Jin Dynasty, was the shortest-reigning emperor in the history of China. He ruled China for less than one day. Yuan Dynasty had the largest territory in history of China.
During the rule of the Zhou, China's boundaries nearly doubled in size, due to the use of iron weapons(including the crossbow), war chariots, and a calvalry. Despite it being the longest dynasty, there wasn't very much social change, besides the creation of new philosophies and technologies. These important new technologies made up for the lack of social change and a weak government. The Zhou dynasty is split into two time periods: the Western Zhou dynasty and the Eastern Zhou dynasty. The Western Zhou dynasty lasted from 1122 - 770 BC.