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.
Skin Ulcer. Skin ulcers are sores or wounds that are kept open causing inflammation of the upper layer of the skin. Skin ulcer develops due to many cases and medical conditions and environmental factors. Very often, the affected person will have an open sore that looks very much like a crater.