the elderly

Question 1

2 theories in programmed aging

Answer 1

a. Limited cell replication: cells have a limited # of time they can divide; once max, cells die
b. Muscular clock theory: Telomeres shorten each division, once lsot stop replica

Question 2

describe the Wear & Tear test for aging theories

Answer 2

oxidative stress due to free radicals
rate of living: high metabolic rate & energy expenduire -> greater cell turnoever

Question 3

longevity depends on….

Answer 3

mpre than half is lifestyle factor
environment
geetic
access to health care

Question 4

life expectancy vs life span

Answer 4

Life expectancy = avg # of life yrs remaining for a person in a popy cohort
Life span = max # of yrs someone might life

Question 5

why take 800 IU of vit D?

Answer 5

• Limited exposure to sunlight
  
  • Institutionalized / homebound
  • Certain med > absorption
  • Can convert provitamin D -> previtamin D less