Your gut synthesizes a host of small molecules which can directly signal the brain. One of these, called ghrelin, is synthesized primarily in the stomach, and is produced when the stomach is empty. Ghrelin released into the blood ultimately finds its way into the brain, and crosses the blood-brain barrier to reach a part of the brain called the hypothalamus. Now, the hypothalamus has two interesting types of cells.
History >> Ancient China. The Shang Dynasty was the first Chinese dynasty with written records. The Shang ruled from around 1600 BC to 1046 BC. Some historians consider the Shang to be the first Chinese Dynasty. Other historians consider it to be the second dynasty, coming after the legendary Xia Dynasty. History.
The Zhou Dynasty (1046-256 BCE) was the longest-lasting of China âs dynasties. It followed the Shang Dynasty (c. 1600-1046 BCE) and it finished when the army of the state of Qin captured the city of Chengzhou in 256 BCE.