Eating too much salt is known to cause high blood pressue,heart attacks and stroke.Now US researchers say it can also give you an ulcer.Presenting the results of their study at the American Society for Microbiology converence,researchers said their findings show salt and Helicobacter pylori(H pylori) bacterium interact to cause ulcers,which affect the digestive track.Found in stomach and duodenum,the H pylori bacterium accounts for up to 90% of duodenal ulcers and up to 80% of gastric ulcers.Many people carry the bacterium without any symptoms.