A population-based study suggesting that people in jobs that require real-time spatial processing—taxi and ambulance drivers—have the lowest rate of Alzheimer’s-related death comes with a bunch of caveats and is reluctant to draw a direct correlation. Per Euronews, people good at spatial processing may be at lower risk regardless of whether they use that skill driving ambulances and taxis. Also:
Independent researchers pointed to a few of those factors, including the fact that the taxi and ambulance drivers in the study died on average around ages 64 to 67, while Alzheimer’s onset is typically after age 65.
Further, few of the drivers were women, who are more likely to develop Alzheimer’s than men, and the analysis didn’t consider genetics or include scans that could show any changes to the brain as a result of their jobs.
So this is a long, long way from being able to say, for example, that driving a taxi prevents Alzheimer’s.
Previously: London Cabbies’ Unique Brains May Help Alzheimer’s Diagnosis.