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.
Main Document. A bleeding ulcer is one that has eaten into the person's blood vessels, causing the person's blood to seep into their digestive tract.. Stomach Ulcer Definition. A stomach ulcer involves an erosion in a person's gastrointestinal tract. An ulcer may also be referred to as a, 'Peptic Ulcer.' The most common form of ulcer is a duodenal ulcer which occurs within the first foot of a person's small intestine, just beyond their stomach. Ulcers which form in a person's stomach are referred to as, 'Gastric Ulcers.' Ulcers are neither cancerous, or contagious; duodenal ulcers are nearly always benign, and stomach ulcers may become malignant. Stomach ulcer disease affects millions of citizens in America each year.