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... Roughly 1% of taxi drivers and 0.91% of ambulance drivers died from the disease, while other occupations recorded nearly 3.9% of deaths.

Researchers link these findings to the demands of a driving-based job, which they describe as occupations that "demand frequent spatial and navigational processing."

"They're making decisions literally every few seconds about where to go, where to turn," senior study author Dr. Anupam Jena told The Wall Street Journal. "The way that your brain is used over the course of your career or the course of your life might impact the likelihood that someone develops dementia." ...