Comment by BobaFloutist

I'm sure that the study accounted for this, but some fun ones

1. Ambo and Taxi drivers are vastly more likely than the general population to die in a collision before Alzheimers gets to them. 2. Even if you control out collisions, driving an Ambo and Taxi requires enough more memory and cognitive functioning to survive that people with early Alzheimer symptoms are significantly more likely to die in a collision, meaning you've controlled out a good chunk of ALzheimer victims in the process.