Science Says Driving A Stick Shift Is Good For Your Brain

The manual transmission may have another argument in its favor beyond driver engagement.

A study from Japan claims that driving a manual-transmission car can stimulate the prefrontal cortex, the part of the brain linked to memory, attention, and decision-making. The research was led by Professor Ryuta Kawashima of Tohoku University, best known for his work behind Nintendo’s Brain Age games.

According to a report from Best Car Web, the study found that the act of manually shifting gears requires the brain to coordinate multiple inputs at once. A driver has to judge traffic speed, press the clutch, select the correct gear, release the pedal smoothly, and manage throttle input. That workflow keeps the brain more actively engaged than simply driving an automatic.

The point is not that a manual gearbox suddenly turns your commute into some kind of medical optimization, just that driving stick requires more active participation. The problem, of course, is that very few people are buying manuals anymore, and even fewer of them remain available.

Best Car reports that manual-transmission vehicles now account for just 1 to 2 percent of new vehicle sales in Japan. In America, that number has dwindled to less than a percent, while in some European countries manuals still enjoy closer to a 20% share. Most mainstream models—and even some enthusiast products—have moved to automatics or CVTs, especially as hybrid powertrains become more common.

Sure, performance cars still keep the manual alive at the enthusiast end of the market, but the everyday manual is fading much faster. Cars like the Toyota Corolla and Honda Civic have largely moved on in regular trims, leaving manuals mostly to sporty versions or inexpensive work vehicles.

For enthusiasts, the study adds one more reason to defend the manual. It is not just about nostalgia or fun. It may also be one of the few remaining parts of driving that still asks the driver to stay fully involved and keeps your brain sharp while doing it.

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