What are the 3 primary physiological changes of aging? (ANS)- 1. Reduced physiological reserve of most body systems, esp. cardiac, resp, renal. 2. Reduced homeostatic mechanisms that fail to adjust regulatory systems (i.e. temp control, fluid/lyte balance, etc.). 3. Impaired immunological function (infection risk is greater, autoimmune dz's more prevalent) What is the preferred amount of exercise for elderly? (ANS)- 30min/day 5 days/wk of moderate exercise. If trying to lose wt: 60min/day. What ...