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

Correct answer choice is :

The purpose of the digestive system is metabolism and digestion. Digestion is the collapse of food into little molecules, which are then consumed into the body. The digestive system is broken into two important parts, The digestive region is a constant tube with two holes, the mouth, and the anus.

exposure to hazardous carcinogens and toxic substances can cause breathing problems, such as copd and various types of cancer. it also increases the risk of heart attacks and strokes and has serious (but no less unattractive) side effects, such as aging, yellow teeth, a terrible smell and damage to the vocal cords.