The overload princiole could make this workout more challenging as this is a full body workout and the point of overload is to push ur body until you cant do anymore which will cause you to achieve strength and muscle mass faster than small workouts. this specifically is good because its a full body workout and you will push your body to the best of its abilities. Hope this helped !!
#1 would be A, #2 would be false, as narcotics are incredibly addictive. #3 is absolutely true, as abuse of almost any medical thing can be life threatening.
I believe it's amphetamines. They release chemicals called catecholamines, particularly dopamine. Tolerance to these build very fast making them highly addictive.
