[link|http://www.nlm.nih.gov/medlineplus/ency/article/000229.htm#Causes,%20incidence,%20and%20risk%20factors|http://www.nlm.nih.g...%20risk%20factors]
"Helicobacter pylori (H. pylori) is a bacteria responsible for most ulcers..."
[...]
"Prevention (of the Helicobacter pylori)
* Don't smoke or quit smoking.
* Reduce stress and practice relaxation techiniques.
* Limit coffee intake to no more than three cups per day."
Limit coffee intake! That's the ticket!