Aschizophrenic patient hears multiple voices inside his head talking to him at the same time and forcing him to do things. it can be inferred that the patient is experiencing the symptom of

The patient is experiencing the symptom of hallucination. It is where a person could see things, imagine things or hear things in a way that he or she could feel them or sense them though they are not true and are only coming from an external stimuli. It could be seen above as the patient hears voices in his head and tells him to do things inside his head which could mean that he is experiencing hallucinations.

The person who utilize the progression principle will keep adding the difficulty of the exercise that he's doing, while the person who does not, will only stay stagnant.  the person that utilize progression principle, will get a stronger endurance because now his body is conditioned to do harsher routines.{the answer was already on verified)

They break down fat