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Chapter 6

by: Crysta Meekins

Chapter 6 GRN 250

Crysta Meekins

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About this Document

notes from 3/29
Aging in Today's World
Dr. Watkins
Class Notes
25 ?




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This 2 page Class Notes was uploaded by Crysta Meekins on Wednesday March 30, 2016. The Class Notes belongs to GRN 250 at University of Kentucky taught by Dr. Watkins in Spring 2016. Since its upload, it has received 17 views. For similar materials see Aging in Today's World in Human Development at University of Kentucky.

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Popular in Human Development


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Date Created: 03/30/16
Degenerative Change with Age ● Body dimensions and composition, skin, hair, skeletal, vascular, respiratory,  neurological, immunological, our senses...all change ● Involves gradual molecular­level change, which then affects cell, tissue, organ,  and/or system function. Body shape and size ● Peak body height in 20s, then gradual decline ● Peak weight in 40s, then gradual decline ● Peak BMI (weight/height^2) by 65, then decline. ● Decline in fat­free or lean mass (FFM), increase in fat (FM) ● Relocation of fat: ­ men=guts ­ women=hips/thighs Skin/Hair ● Reduced microcirculation ● Thinning and welling ● Hair follicles­sweat glands Cardiovascular ● Reduced oxygen absorption ● Vascular stiffening/obstructions ● Reduced cardiac function Musculo­Skeletal ● Spinal compression ● Calcium leaching ● Reduced bone production ● Muscle mass, fibers, enervation Guts ● Reduced organ elasticity ● Reduced mineral uptake ● Micro­flora changes ● Reduced peristalsis ● Reduced kidney function ● Bladder elasticity ● Sphincter enervation The Senses ● Lens discoloration ● Presbyopia ● cataracts/glaucoma ● Reduced sense of smell ● Reduced sense of touch Why try to understand why? Or.. great excuses for biological research ● Helps people live longer..and longer and longer (extending life span­longevity) ● Helps people age with better health (extending “health span”) ● Helps people look better? Along the way (anti­aging, un­aging, and the pursuit of  youth)


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