If you don't have a desire to exercise and reach a goal, you have
o a lack of motivation
o a poor support system
an obstacle
delete
o negative feedback

answer: the answer is right for that person

explanation:

if the person want to exercise and reach a goal but has no zero motivation than that is your answer but if the person has a poor support system it would kind of be like negative feedback but a they only said yah your doing great and lying or b they are to hard and it is just negative coming across.

answer: i would say the brain but it seem that you have a brain.