As disturbing as they can sometimes be, sensational news stories have a way of educating us in piecemeal fashion. In the aftermath of the Terry Schiavo case, for example, we are now all more aware of the importance of living wills. We are also more aware of something called a feeding tube. Learn more on this Moment of Science.
A resilient little beast, H. pylori survives in the highly acidic environment of the stomach by producing an ammonia generating enzyme that neutralizes stomach acid. Using its corkscrew shape, it penetrates the stomach’s defenses and attaches to the stomach lining.