Hypothyroidism has several causes. The first of which is a deficiency of iodine. Iodine is found in shellfish, shrimp, salt, and other foods. If a person does not get enough of these foods, they will not receive the proper amount of iodine that the thyroid needs to function at its best.
Introduction. Japanese samurai were warriors of the shogun rulers during feudal times. While their origins are unknown, what is known is that they were fearsome in combat and were fast on horseback. In the 8th century, Japan's government sent warriors to subdue barbarians in northern Honshu.amurai were expected to be fearless, loyal servants of the samurai lords, the daimyo, while leading a plain and simple life. These warriors made up a very small portion of the Japanese population, while the rest of the population were farmers, merchants, priests, monks and artisans.
By some reports, the word samurai first appeared in the 12th century. For a long time, the samurai provided the main military force used against emishi and other clans. In the 1100s, two powerful clans served the emperor of Japan: the Taira clan, and the Minamoto clan. These two families became bitter rivals, and in 1192, Minamoto Yoritomo led his clan to victory over the Taira.