The downside to living so long is that it dramatically increases the odds of getting dementia or Alzheimer’s. That’s why total deaths in the 75+ category has stayed constant despite impressive reductions in the propensity to die of heart disease.
The rise of Alzheimer’s and other forms of dementia has had a big impact on healthcare costs because these diseases kill the victim slowly.
About 40% of the total increase in Medicare spending since 2011 can be attributed to greater spending on Alzheimer’s treatment.