Barry Marshall
Barry Marshall, an Australian scientist born in 1951, was best known for drinking a broth containing Helicobacter pylori, a type of bacteria, in order to prove that they are the primary cause of stomach ulcers. Previously, many scientists had believed that bacteria could not live in the acidic environment of the stomach, and instead attributed their prevalence to other factors such as stress. While Marshall did become ill after consuming the bacteria, he took antibiotics, which lowered the symptoms of his illness and suggested that H. pylori bacteria were the cause of stomach ulcers. Marshall proved that stomach ulcers were of a bacterial origin, and won the Nobel Prize in 2005 for his work regarding the subject.
-Akash
