Performance-enhancing drugs are substances that are used to improve any form of activity and sport performance.
Most physical effects of performance-enhancing drugs are reversible, with the exception: Damage to the myocardium, which is not reversible. Performance-enhancing drugs may have an effect on the cardiovascular system by directly altering the myocardium.Correct answer: B
<span>Because all organs in human body relate to each other somehow, we need to take care of every one of them. If any one of them goes bad, it will influence other organs.</span>
