A young mother experiences nausea and diarrhea when stressed. What mind–body messenger is believed to be responsible for these responses?
A) Reproductive hormones
B) White blood cells
C) Neuropeptides
D) Pancreatic insulin
Ans: C
The scientific field of psychoneuroimmunology studies neurochemicals, such as neuropeptides, that are believed to be the messenger molecules that connect the body and mind. Many neuropeptide receptor sites lie along the gastrointestinal tract; as a result, people can experience a large variety of gastrointestinal symptoms in response to emotional situations.
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