ISO (International Organization for Standardization) envelope sizes are the official international metric envelope sizes; however, Japan uses JIS (Japan Industrial Standard) and metricated traditional envelope sizes. N.B.
Peptic ulcers are holes or breaks in the protective lining of the duodenum (the upper part of the small intestine) or the stomach -- areas that come into contact with stomach acids and enzymes. Duodenal ulcers are more common than stomach ulcers.Comparatively rare are esophageal ulcers, which form in the esophagus -- or swallowing tube -- and are often a result of exposure to medications, like certain antibiotics or anti-inflammatories, or alcohol abuse.veruse of over-the-counter painkillers (such as aspirin, ibuprofen, and naproxen), heavy alcohol use, psychological stress, and smoking exacerbate and may promote the development of ulcers, especially in someone with H. pylori. Other studies show that stomach ulcers are more likely to develop in older people.
Many people believe that consuming high amounts of spicy foods can lead to peptic ulcers, but this is merely a myth and no truth stands behind it. Furthermore, stress does not lead to peptic ulcers either. Peptic ulcer causes, symptoms. As mentioned, peptic ulcers are commonly caused by bacteria or erosion due to stomach acid. The most common bacterium that causes peptic ulcers is H. pylori. Other causes of peptic ulcers include frequent use of aspirin, ibuprofen, and other anti-inflammatory medications, as well as smoking, drinking excessive alcohol, radiation therapy, and stomach cancer. The main symptom of peptic ulcers is a burning sensation in the abdomen, which can be felt from the belly button up to the chest.