For decades people have believed that the cause of stomach ulcers is stress. The common belief was finally controverted in 2005 by two scientists, Dr. J. Robin Warren and Dr. Barry J. Marshal.
The two Australian scientists suggested their findings in the early 1980s, but the old medical thinking refused to accept them. It took them decades in order to find proof for their findings. Stress and stomach acids were believed to be the cause of the ulcers until the two Australians started conducting experiments on themselves. Through research and experiments they found that a bacterium, called Helicobacter pylori, was actually the cause of ulcers. The bacteria caused stomach inflammation and even stomach cancers. However, their findings weren’t considered as accurate up until 2005.
Finally, in 2005 Marshal and Warren were awarded with a Nobel Prize for Physiology or Medicine. They received $1.3 million and their discovery finally received a worldwide acknowledgment.