What is Optimal Aging? Healtht aging…
Healthy aging can be defined as absence of disease &
good physical function, intact cognition, and an active engagement with life
Optimal Aging- Losses are often balanced by gains
Life Span
the maximum number of years an individual can live;
has remained between 120–125 years
Life Expectancy
Longer life span
– Decrease in infant mortality & infectious diseases
– Better health practices (sanitation, drinking water, nutrition & food safety, better heath behavior habits)
– Decline in heart disease & deaths due to cardiovascular
disease (such as stroke); though cancer deaths have
remained relatively stable
Leading causes of death
– Smoking, poor diet & physical activity, & alcohol consumption—not pathogens
– Obesity is 4th leading cause
Cellular Clock Theory
Cells can divide a max of 75-80 times; this places the max human life span at 120–125 years of age
-Telomeres become shorter each time a cell divides
Free-Radical Theory
people age because when cells metabolize energy, the by-products include unstable oxygen molecules, or free radicals
-Free radicals damage DNA & other cellular structures
Mitochondrial Theory
aging is due to the decay of mitochondria
-Mitochondria: tiny bodies within cells that supply essential energy for function, growth, and repair
Hormonal Stress Theory
aging in the body’s hormonal system can lower resistance to stress and increase the likelihood of disease
-Prolonged, elevated levels of stress hormones are associated with increased risks for many diseases
Vision
Hearing
Smell and Taste
Touch and Pain
2. Older adults are less sensitive to pain
Research focus on motor control & aging has been captured in 3 distinct areas of study
Motor complex behavior
Sexuality
Substance Abuse
Exercise
Active adults are healthier and happier: cardio & weights combined is best
Benefits of Exercise
Nutrition & Weight
Health Treatment
Cognitive mechanics
Cognitive pragmatics