Health and Me

Ishita Roy

How You Drive Could Tell You About Your Cognitive Decline

Most of us do not think twice about our daily driving habits. We take the same turns, choose the same roads, and travel at roughly the same times every day. But according to new research from Washington University in St Louis, these small choices may quietly reflect something deeper happening inside the brain. The findings are published in the journal Neurology.

The study suggests that subtle changes in driving behavior could serve as early warning signs of cognitive decline. In other words, the way an older adult drives today may help predict future memory or thinking problems long before they become obvious.

The team focused on people already diagnosed with mild cognitive impairment, often considered a transitional stage between normal aging and conditions like Alzheimer’s disease. They analyzed data from 56 individuals with mild cognitive impairment and compared it with information from 242 adults of similar age who showed no cognitive issues. The average age in both groups was 75.

Instead of relying only on memory tests or conversations with patients, the researchers added GPS tracking data collected directly from participants' vehicles. This allowed them to understand how often people drove, where they went, what routes they chose, and how they behaved behind the wheel over a period of nearly three and a half years.

What emerged was a pattern. People with mild cognitive impairment gradually began driving less often and to fewer places. They stuck to familiar routes, avoided more complex trips, and showed less variation in the times they traveled. They also tended to speed less. Even after adjusting for factors like age, education level, and genetic risk of Alzheimer’s, the differences in driving habits remained clear.

<h2>Driving Behavior as a Diagnostic Tool</h2>

The researchers found that driving data alone correctly identified individuals with mild cognitive impairment 82 percent of the time. When combined with standard cognitive tests and demographic information, accuracy rose to 87 percent.

Neurology researcher Ganesh Babulal explained that early identification of unsafe drivers is a public health priority, but the usual evaluation methods can be slow and difficult. According to him, adding GPS tracking to traditional screening tools could offer a practical and more accurate way to spot early cognitive problems.

He noted that daily driving behavior is a low effort and unobtrusive marker of how well someone is functioning. Since driving requires quick thinking, coordination, and attention, even small cognitive changes can influence how people choose to navigate the road.

The research team plans to expand the study to include larger and more diverse groups of people. They also hope to bring in additional factors, such as vehicle type, where participants live, and other medical conditions.

Their goal is not to take away anyone’s independence but to help identify risks earlier so that support and interventions can be offered before a crash or near miss occurs. At the same time, the researchers stress that any tools developed from this work must balance safety with respect for personal autonomy and privacy.

This study opens an important conversation: sometimes the first signs of cognitive decline do not show up in a doctor’s clinic. They show up quietly, in the everyday paths we choose and the roads we avoid.,

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how you drive could reveal your brain health

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Most of us do not think twice about our daily driving habits. We take the same turns, choose the same roads, and travel at roughly the same times every day. But according to new research from Washington University in St Louis, these small choices may quietly reflect something deeper happening inside the brain. The findings are published in the journal Neurology.The study suggests that subtle changes in driving behavior could serve as early warning signs of cognitive decline. In other words, the way an older adult drives today may help predict future memory or thinking problems long before they become obvious.What the Researchers FoundThe team focused on people already diagnosed with mild cognitive impairment, often considered a transitional stage between normal aging and conditions like Alzheimer’s disease. They analyzed data from 56 individuals with mild cognitive impairment and compared it with information from 242 adults of similar age who showed no cognitive issues. The average age in both groups was 75.Instead of relying only on memory tests or conversations with patients, the researchers added GPS tracking data collected directly from participants' vehicles. This allowed them to understand how often people drove, where they went, what routes they chose, and how they behaved behind the wheel over a period of nearly three and a half years.What emerged was a pattern. People with mild cognitive impairment gradually began driving less often and to fewer places. They stuck to familiar routes, avoided more complex trips, and showed less variation in the times they traveled. They also tended to speed less. Even after adjusting for factors like age, education level, and genetic risk of Alzheimer’s, the differences in driving habits remained clear.Driving Behavior as a Diagnostic ToolThe researchers found that driving data alone correctly identified individuals with mild cognitive impairment 82 percent of the time. When combined with standard cognitive tests and demographic information, accuracy rose to 87 percent.Neurology researcher Ganesh Babulal explained that early identification of unsafe drivers is a public health priority, but the usual evaluation methods can be slow and difficult. According to him, adding GPS tracking to traditional screening tools could offer a practical and more accurate way to spot early cognitive problems.He noted that daily driving behavior is a low effort and unobtrusive marker of how well someone is functioning. Since driving requires quick thinking, coordination, and attention, even small cognitive changes can influence how people choose to navigate the road.What Comes NextThe research team plans to expand the study to include larger and more diverse groups of people. They also hope to bring in additional factors, such as vehicle type, where participants live, and other medical conditions.Their goal is not to take away anyone’s independence but to help identify risks earlier so that support and interventions can be offered before a crash or near miss occurs. At the same time, the researchers stress that any tools developed from this work must balance safety with respect for personal autonomy and privacy.This study opens an important conversation: sometimes the first signs of cognitive decline do not show up in a doctor’s clinic. They show up quietly, in the everyday paths we choose and the roads we avoid.,