Paradox of Disease Prevention Notes

Why is prevention so difficult to implement despite being valued in principle?

Prevention has greatly contributed to increased human longevity.
Early modern humans (25,000-40,000 years ago) lived to their mid-twenties on average.
In the millennia before the 20th century, life expectancy increased by about 25 years (1 year per 1000 years).
In the 20th century alone, life expectancy in developed countries increased by another 25 years due to:
- Accelerating economic growth
- Improved sanitation
- Recognition of infectious diseases
- Better nutrition and living conditions
- Widespread use of vaccines and antimicrobials
By 2010, non-communicable diseases accounted for two-thirds of deaths worldwide, increasing the importance of chronic disease prevention.

Feature	Curative	Preventive
Starting point	Patient seeks care due to symptoms	Population level, then translated to the individual
Focus	Pathology of disease	Risk
Goal	Restore patient to earlier state of health	Shift population-wide distribution to a healthier level
Responsibility	Individual patient	Entire community
Solutions	Medication, operations, clinical therapies	Behavior change, social conditions, clinical interventions

There are many reasons why prevention is resisted:

Success is Invisible:
- It's impossible to definitively prove an individual's preventive efforts improved their health.
- Prevention creates an absence of events, succeeding quietly and invisibly.
- Example: HPV vaccine - women won't know if it prevented cancer.
- Invisibility can lead to decreased immunization rates, causing outbreaks (e.g., pertussis, measles in the UK and Japan).
- Antivaccine movements endanger communities, especially children.
- Deaths from pertussis outbreaks are often avoidable.
Lack of Drama:
- Curative interventions are often dramatic and exciting (e.g., successful liver transplant).
- Prevention lacks this drama;