The answer is A. Quit smoking.
Smoking affects the lungs terribly which can greatly affect your heart since they are both part of the cardiovascular system.
EDIT: To further explain, smoking affects your respiratory system (lungs, bronchioles, etc.) however the cardiovascular system depends on the respiratory system. Overall they both keep blood flowing through the arteries of the body. Smoking damages the lining of your arteries, leading to a build up of fatty material which narrows the artery.
<span>The alarm stage of stress is when the body prepares itself for fight-or-flight. </span>
Based on your options, the answer is that A potentiated effect is when an exaggerated effect produced by two or more drugs in the same category. All the other descriptions do not fit a potentiated effect drug.
Lol id say all above but................its more difficult 2 exercise with all that weight pullin you donw.