All of the following statements are TRUE about a cardiac arrest EXCEPT: A. Cardiac arrest happens primarily to older individuals with a history of cardiac disease.

B. Cardiac arrest is an electrical disturbance and abrupt loss of heart function.

C. A heart attack can trigger an electrical disturbance in the heart.

D. Using an AED for a cardiac arrest can improve the chance of survival to restart the heart's electrical rhythm.

these are common warning signs of overtraining syndrome:

washed-out feeling, tired, drained, lack of energy

mild leg soreness, general aches, and pains

pain in muscles and joints

sudden drop in performance

insomnia

headaches

decreased immunity (increased number of colds, and sore throats)

decrease in training capacity/intensity

moodiness and irritability

depression

loss of enthusiasm for the sport

decreased appetite

increased incidence of injuries.

a compulsive need to exercise