Hi, I would like to know if a person is emotionally stressed, will
gastric acid secretion be increased or will there be less bicarbonate
ions secreted?

Today, I discussed with my friends about whether emotional stress is a
risk factor of peptic ulcer. But it seems that it is Helicobacter
Pylori which contributes to nearly all cases non-NSAID induced
gastric/duodenal ulcer. During the discussion, one of my friends said
when a person is emotionally stressed, there will be less bicarbonate
ions secreted from parietal cells and thus the mucosal barrier in the
stomach is weakened. Is he correct?