BBC News
By Chris Baraniuk
image copyrightRoe Lab
image captionSayeh Bayat, PhD candidate at the University of Toronto says patterns detected in driving can reveal a lot of health information
Everyone s driving changes as they age. But for some people, subtle differences emerge in how they control a vehicle, which scientists say are associated with the early stages of Alzheimer s disease.
In an experiment to find out whether these driving differences can be detected using Global Positioning System-based (GPS) location-tracking devices, a group of over-65s in Washington State in the US agreed to have their driving closely monitored for one year.