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.
Before the 20th century, the Zhou dynasty (1046â256 BC) was the earliest Chinese dynasty that could be verified from its own records. However, during the Song dynasty (960â1279 AD), antiquarians collected bronze ritual vessels attributed to the Shang era, some of which bore inscriptions.n Japan and Korea, the Shang are still referred to almost exclusively as the Yin (In) dynasty. However it seems to have been a Zhou name for the earlier dynasty. The word does not appear in the oracle bones, which refer to the state as ShÄng (å), and the capital as Dayi DÃ yÃ¬ (shÄng å¤§éå Great Settlement). shang