Gemstones: Introduction For the past 10,000 years, mankind has always been fascinated with gemstones. Their colors, properties, myths, and legends are diverse and captivating. In the ancient times gemstones were reserved only for the rich and served as status symbols. They were also worn as amulets and talismans, offering protection […]

The sphincter muscle is a circular band of muscle that surrounds an opening or passage in the body, and is located above the stomach opening. It is also responsible for allowing food to keep in the stomach for proper breakdown and also for keeping of the acid in the stomach […]