Do black cab drivers have bigger brains?

Previous studies have shown that taxi drivers have a larger hippocampus compared to non-taxi drivers. This is interesting as this brain region shrinks and becomes damaged in Alzheimer's disease, leading to symptoms of memory loss and confusion associated with the disease.



Yes, scientific research—most notably a famous 2000 study by University College London—has shown that licensed London black cab drivers have a significantly larger posterior hippocampus than the average person. This specific region of the brain is responsible for complex spatial memory and navigation. The increase in gray matter is a direct result of "The Knowledge," a grueling three-to-four-year training period where drivers must memorize the "six-mile radius" of Charing Cross, encompassing 25,000 streets and thousands of landmarks. Follow-up studies have confirmed that this is an example of neuroplasticity, where the brain physically grows and adapts to accommodate an enormous mental map. Interestingly, the research also found that while their spatial memory increased, other types of memory slightly decreased, proving that the brain has a finite amount of "real estate." In 2026, this study remains the definitive example of how intense expertise can physically reshape the human mind.

People Also Ask

To be a London black cab driver, is one expected to know over 25,000 roads and 50,000 points of interest and pass a test called The Knowledge? Black refers to the color of the vehicle. No, that is not correct. You do have to pass “The Knowledge” but your figures are way off.

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In other words, taxi drivers had plumper memory centers than their peers. It seemed that the longer someone had been driving a taxi, the larger his hippocampus, as though the brain expanded to accommodate the cognitive demands of navigating London's streets.

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“Take me from Park Lane to Earl's Court,” a customer might say. And a cab driver in London is required to know the quickest way off by heart. That is because they know the center of the British capital; they'll have committed 320 runs across 25,000 streets, encompassing at least 20,000 landmarks, to memory.

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As a taxi driver you'll spend many hours of your day sitting behind the wheel, and this can cause a lot of stress on your body. Regular physical activity helps reduce the effects of stress by: Encouraging the release of 'feel good' endorphins.

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They keep doing the same thing, lighting indicators, changing gears for hours at a stretch. And driving is potentially a very exciting job, meeting new people every hour. It is no surprise that taxi drivers become excellent analysts after years of observation. They just want to talk to break the monotony.

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Black Cabs and Bowler Hats One unique fact about the Hackney Cab is that dating back to their horse-drawn equivalents in the 17th century, they were required to be tall enough to fit a person wearing a bowler hat.

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Travis Bickle (Robert DeNiro), age 26, is Taxi Driver's lonely, alienated “hero.” Yes, he's a Vietnam War vet, ex-marine, and likely has his share of PTSD. But, his problems stem from something much deeper than war trauma. He must have suffered some kind of childhood trauma, to be sure.

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Taxi Driver is a 1976 American neo-noir psychological thriller film directed by Martin Scorsese, written by Paul Schrader, and starring Robert De Niro, Jodie Foster, Cybill Shepherd, Harvey Keitel, Peter Boyle, Leonard Harris, and Albert Brooks.

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Tipping taxi drivers It is polite to tip 10 to 15% of the taxi fare for black cabs and licensed minicabs in London. However, most people simply round up the fare to the nearest £1 and tell the driver to keep the change.

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I might have some more luck with Bolt but I'd say it's all hit and miss. Look I took my fare share of Ubers and black cabs I can say black cab is not slightly more expensive it's 30-50% more than Uber. I didn't say it's cheaper. I said, from my experience, it's slightly more expensive than Uber.

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