
Map-Based Thinking: Learning Local Environments May Protect Your Brain
A new study suggests that people who rely less on GPS and actively learn their surroundings can strengthen the hippocampus and may lower Alzheimer's risk; building mental maps is linked to brain health, with prior London taxi driver research showing larger posterior hippocampus from route-learning, and a 2024 Harvard-led analysis finding that taxi and ambulance drivers had Alzheimer's death rates under 1%—far lower than the overall rate—compared with other transportation jobs. The takeaway isn’t to abandon GPS entirely but to exercise spatial navigation in daily life to potentially protect the brain as you age.













