Page 185 - The Miracle of the Blood and Heart
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The Heart: The Most Efficient
                                    Machine in the World


                 as blood is still present, the heart can even keep beating out-
                 side the body.
                    By beating an average of 70 times a minute, the heart
                 moves blood around the body some 1,000 times a day. This
                 means that blood visits every cell in the body 1,000 times a
                 day, carries to them the necessary nutrients, gives oxygen and
                 takes back carbon dioxide, repairs damage, makes good
                 defects and collects wastes. Thanks to the heart's tireless
                 efforts, every cell in the body is "inspected" 1,000 times a day.
                 The heart pumps 8,000 liters (2,113 gallons) of blood every
                 day. 87  The heart of an adult pumps 340 liters (89 gallons) of
                 blood an hour even while sleeping.  At that same rate, one
                 could easily fill a car's gas tank in just seven minutes. 88
                    The heart is a piece of muscle the size of a fist, consisting
                 of water, fat and protein, but possessing a far more perfect and
                 complex system than even the most advanced pump that has
                 yet been developed by experts working with computers. This
                 incomparable piece of flesh is powerful enough to squirt
                 blood 2 meters (6 feet) high into the air. 89
                    Another miraculous feature is that the heart can determine
                 the body's needs and pump just as much blood as it requires.
                 In a person at rest, the heart pumps just 4 to 6 liters (1.057 to
                 1.585 gallons) of blood a minute. That quantity is enough
                 because the resting body's cells don't require too much oxy-
                 gen. If someone is exercising, however, his need for oxygen
                 rises, and it needs to be transmitted to the cells faster. The
                 heart immediately identifies this need and begins beating
                 faster. During exercise, the amount of blood pumped by
                 the heart can increase by four and seven times. 90
                    To see the perfection of these features of the
                 heart, imagine a machine that pumps water at least
                                                                       Adnan
                                                                       Oktar



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