answer; genes dictate the production of specific enzymes, and affected individuals have genetic defects that cause them to lack certain enzymes;...Read More
the more fit you are, the faster the recovery. your heart rate drops most sharply in the first minute after you stop exercising; it should then fall about 20 beats a minute—a drop...Read More
Adescription of congestive heart failure, its symptoms, risk factors, and treatment. to the heart muscle other than by artery or blood flow pro...Read More