Amajor side effect that stress can cause on the gastrointestinal system is
a.
diminished levels of gastrin, leading to constipation
b.
elevated levels of gastrin, causing stomach ulcers
c.
elevated levels of cortisol, causing overeating
d.
diminished levels of cortisol, causing weight loss

A major side effect that stress can cause on the gastrointestinal system is B. elevated levels of gastrin, causing stomach ulcers. People who have sensitive stomachs and experience a lot of stress during their life are likely to have stomach problems such as wounds or ulcers, because stress leads to elevated secretion of gastrin, which damages the walls of the stomach and leads to ulcers and other problems.