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 the time the Tokugawa era ended in 1868, daisho swords had become symbols of power rather than weapons used in warfare. A Closer Look. In what country and during what time period were these swords used? (They were worn in Japan during the Tokugawa period, which began in 1603 and ended in 1868.) What were the swords used to protect? (Agriculture.)