The 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 Dr Read. In some cases, these bacteria produce hydrogen, which can ...

http://www.dailytimes.com.pk/default.asp?page=2013\04\11\story_11-4-2013_pg9_6