The nurse is talking to a patient who was involved in a motor vehicle accident.The patient asks the nurse why there was no sensation of pain at the time of the accident.The best explanation would be:

A) "Vasopressin was released to decrease pain sensation."
B) "Endorphins are released during a time of stress to reduce pain."
C) "Alcohol reduces the perception of stress when injury occurs."
D) "You probably have chronic high levels of cortisol to help with chronic pain."

Endorphins are hormones that interact with the opiate receptors in the brain to reduce our perception of pain and produce a sense of well-being.Vasopressin increases reabsorption of water by the kidneys and induces vasoconstriction,thereby raising blood pressure.It has no effect on pain sensation.Unhealthy coping choices,such as the use of alcohol or tobacco,negatively affect a person's health as well as increasing the perception of stress.Persistent elevated cortisol levels are associated with chronic health conditions,such as obesity,heart disease,depression and anxiety,diabetes,and osteoporosis.