Select the correct answer. What is an allergic reaction?
.
A.
The body's abnormal immune response to a foreign substance
B.
A mechanical injury caused by a foreign object
C.
A normal body function
D.
All of the above

A. The body's abnormal immune response to a foreign substance.

Explanation:

If you are allergic to peanut butter it means you are not used to peanut butter. It is foreign to you and you can't eat it. You aren't used to eating it.

A

Explanation:

If there is something that affects you and your body then your immune system will do what it has to do.

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

so i really think that most of the health care industry be doing more bad than good.