KINESIOL 4SS3 Lecture Notes - Lecture 2: Infant Mortality, Y Chromosome, Overnutrition
19 Sep 2016
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Document Summary
Middle age: ages 4-65 yrs, 10-30% loss of function in major biological systems. Old age: ages 65-75 years, further declines in biological function. Very old age: 75-85, ability to perform daily activities may be impaired. Oldest old age: >85 yrs, institutional and/or nursing care usually provided, can be independent but very less likely. Oldest canadian: doris lillian cornell of saskatchewan, canada, now 111 born on august 21, Concept of survival of the fittest (selective survival) Expected mortality curve is suppose to increase after ~95. May increase a little but not at the trajectory that human is aging. Average age by which all but a very small percentage of the members of a population are deceased. Most gerontologists agree that average life span for humans is ~85 years (has not changed much since the beginning of recorded history) Average number of years remaining for a population of individuals (usually expressed from birth)
