This point is made crystal clear even when we take a look back over the last few years. According to the National Sleep Foundation (NSF), a U.S. nonprofit organization of researchers, patients and health-care facilities, 20% of Americans reported getting six hours of sleep or less in 2009, compared to 13% in 2001.
An ulcer (/ËÊlsÉr/; from Latin ulcus, ulcer, sore) is a break in the skin or mucous membrane with loss of surface tissue and the disintegration and necrosis of epithelial tissue. A mucosal ulcer is an ulcer which specifically occurs on a mucous membrane.
An âulcerâ is an open sore. The word âpepticâ means that the cause of the problem is due to acid. Most of the time when a gastroenterologist is referring to an âulcerâ the doctor means a peptic ulcer. The two most common types of peptic ulcer are called âgastric ulcersâ and âduodenal ulcersâ. These names refer to the location where the ulcer is found. Gastric ulcers are located in the stomach (see Figure 1). Duodenal ulcers are found at the beginning of the small intestine (also called the small bowel) known as the duodenum. A person may have both gastric and duodenal ulcers at the same time. Figure 1. Photograph of a peptic ulcer taken during an upper endoscopy.