HD 360 – Death & Dying · 2012. 3. 29. · 1 HD 360 – Death & Dying Unit 1 Introduction...
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1
HD 360 – Death & Dying
Unit 1
Introduction
Introduction
• Thanatos (Greek term for death)
– Thanatology (study of death)
• Today, death is a “taboo” subject.
• We use euphemisms.
• The emphasis is on youth and health.
• We are worried about what happens afterward.
• We all want “the good death.”
Is there a right time to die?
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The Final Stage of Growth
Why do we die?
• We are genetically programmed to die.
– Genetic death clock
– Maximum life span 115-120 years
– Leonard Hayflick: Human cells can
replicate themselves about 50 times and
then they run out of genetic material.
– Methuselah gene
– Trees produce a protein causing cell death
Why do we die?
• Currently - disease processes related to
aging and lifestyle
• In the past, more likely to die from
infection or (for women) pregnancy &
childbirth complications
• Epidemiological shift – historically death
from microbes; now due to chronic
disease

2
Leading Causes of Death
• 1. Heart disease
• 2. Cancer
• 3. Stroke
• 4. Chronic lung disease
• 5. Accidents
• 6. Diabetes
• 7. Flu & Pneumonia
Leading Causes of Death
• 8. Alzheimer’s
• 9. Kidney Disease
• 10. Septicemia
• 11. Suicide
• 12. Liver disease, cirrhosis
• 13. Hypertension (high blood pressure)
• 14. Homicide
Leading Causes of Death
• 15. Pneumonitis (inflammation of lungs)
• 16. Aortic Aneurysm
• 17. Parkinson’s Disease
• 18. HIV/AIDS
• 19. Atherosclerosis
• 20. Perinatal period
Causes of Death - Infancy
• Neonates (birth to 4 weeks)
– #1 Congenital anomalies (birth defects)
– #2 Prematurity
– #3 Sudden Infant Death Syndrome (SIDS)
• Infancy (1 month - 1 year)
– #1 SIDS
Causes of Death - Childhood
• 1 Accidents
• 2 Cancer
• 3 Homicide
• 4 Congenital anomalies
• 5 Suicide
• 6 Heart disease
• 7 AIDS (#4 for ages 0 - 4)
• 8 Pneumonia/influenza
Causes of Death -
Adolescence
• 1 Accidents
• 2 Homicide
• 3 Suicide
• 4 Cancer
• 5 Heart disease
• 6 AIDS

3
World Health Report
• Leading causes of global death (1997)
– 1 Infectious and parasitic diseases (33%)
– 2 Circulatory diseases (29%)
– 3 Cancer (12%)
– 4 Perinatal conditions (3.6 million - 7%)
– 5 Respiratory diseases (6%)
– Deaths from accidents, violence and AIDS
are rising
World Health Report
• Age structure of deaths - 1955
– 40% - children under age 5
– 10% - children aged 5-19
– 28% - adults aged 20-64
– 21% - adults over age 65
World Health Report
• Age structure of deaths - 1995
– 21% - children under age 5
– 7% - children aged 5 - 19
– 27% - adults aged 20 - 64
– 43% - adults over age 65
World Health Report
• Age structure of deaths - 2025
– 8% - children under age 5
– 3% - children aged 5 - 19
– 27% - adults aged 20 - 64
– 63% - adults over age 65
World Health Report
• The World Report on Violence
– 1.6 million deaths per year
– Most between age 15 and age 44
– 14% Males; 7% Females
– Costs billions of dollars per year
Life Expectancy
• Average age at which an organism is
expected to die
– Reflects hospitality of the environment
– Reflects genetic disposition
– Race and gender influence
• Life span – the length of time from birth
until death
– Maximum life span has changed little

4
Historical Overview
• 3000 BC - 18 years
– Life tenuous because of disease and
accidents
• 275 BC - 26 years
• 1900 - 49 years
– Improved sanitation helps, but
infectious diseases are still killers
Historical Overview
• 1990 - 76 years
– Better diet and health care
– Reduced infant mortality
• 1995 - 76 years (White) 70 years (Black)
• 2004 - 77.43
– Women outlive men by about 6.4 years
– Racial mortality crossover
– U.S ranks 48th of 225 countries surveyed
Predicting the Future
• Life expectancy expected to reach 115
years sometime in the next two decades
– Better diet and lifestyle
– Hormone replacement
– Rejuvenating body chemicals
– Better understanding of the aging process
– Genetic engineering
What is good about death?
• Promotes survival of the fittest
• Crucial for ecological balance
• Relieves suffering
• What if life went on forever?