Bad habits that can be good for you

... with the Helicobacter pylori bug or the condition pernicious anaemia (where the body doesn't absorb enough vitamin B12) - then this changes the type of bacteria in the stomach," says Read. In some cases, these bacteria produce hydrogen, which can ...

http://www.iol.co.za/lifestyle/bad-habits-that-can-be-good-for-you-1.1499512