An insurance program set up to pay expenses for work-related injuries, illness, and death is called?

The answer is (Workers' compensation) is a state-mandated insurance program that provides benefits to employees who suffer job-related injuries and illnesses. Each state has its own laws and programs for workers' compensation.

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)