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.
Peptic Ulcers: Causes, Diagnosis, and Treatments. An ulcer is a sore that forms when the lining of the digestive system is worn away by acidic digestive juices. A peptic ulcer is a sore in the lining of the stomach, duodenum, or esophagus. It is estimated that up to 10 percent of adults globally are affected by peptic ulcers at least once in their lifetimes.