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Heart Desease in The Elderly
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Category : Health » Heart Disease
fectively treat heart disease must include older . Any discussion of heart disease in the elderly must . While coronary heart disease is the. leading .
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Content Summary :
HOW THE HEART GROWS OLD As a person ages, the heart undergoes subtle phys-iologic changes, even in the absence of disease. (Seebox, “Physiologic Changes in the Aging Heart andBlood Vessels.”) The muscles of the aged heart mayrelax less completely between beats; as a result, thepumping chambers (ventricles) become stiffer andmay work less efficiently, especially if specific cardiacdiseases are present. In old age, the heart also maynot pump as vigorously or as effectively as it oncedid. The older heart also becomes less responsive toadrenaline and cannot increase the strength or rateof its contractions during exercise to the same extentit could in youth. We come to realize that althougha 50- or 100-yard dash was easy when we were 20,it is extremely difficult as we get older—the heart justcan’t get enough blood out to muscles to supply themwith adequate oxygen.
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