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9 Cards in this Set
- Front
- Back
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Lifespan Vs. Longevity |
Lifespan- age someone is EXPECTED to live Longevity- actual length of individuals life world wide length is up 40%, females life longer |
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Reasons for Life expectancy increase |
-Medical Adv. -Lowered Infant Mortality -better quality of life and living conditions |
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Genetic Programming theory |
-genes control aging, bodies age according to this code. -dev time subject to only minor mods -biological clock is acted on through hormones -decline in immune system = increase vuln. |
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Variable Rate Theory |
-Age is result of process that varies per person -Influenced externally & internally (metabolism vs environ |
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Wear & Tear Theory |
Body ages as DMG accumulates (like a car) |
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Free Radical Theory |
free radicals build up during metabolism |
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Speed of living theory |
rate of metabolism affects longevity, slower is better, faster dies younger. low cal. is good. |
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Somatic Mutation Theory |
as cells divide they change slightly. exposure to UV light/toxins can dmg cells as body ages less ability to ctrl this change |
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Cross linking theory |
high lvls of blood sugar crosslink some organs, causes disease. too much protein, skin stiffens. |
