Tracking Alzheimer's patients who get lost has become a bit easier in the UK following the launch of new shoes that have an in-built tracking device.
Designed to give worried relatives and friends piece of mind, the shoes enable the person with Alzheimer's to be monitored remotely, giving them more freedom.
One of the most common concerns for families of an Alzheimer's sufferer is that the person often becomes lost after getting confused and disoriented.
Relatives are even able to set up a designated "safe" area so if the person strays beyond those boundaries, it would trigger an alert in the form of an email or text message.
Family members use an app downloaded to a smart phone or computer to find out the location of the missing person.
The GPS system is implanted in the heel of what appears to be a normal walking shoe.
The device, which cannot be seen or felt, contains a battery, SIM card (this is what tracks the wearer) and an integrated chip to help the device function.
The antenna and a USB connection to charge the shoes runs up the back heel of the shoe.
The shoes need charging roughly every two days, a process that takes roughly two hours.
The tracking device is a joint development between Los Angeles-based GTX Corp, who make miniature tracking devices, and Aetrex shoes.
Patrick Bertagna, chief executive of GTX Corp, said the mini GPS system was initially made for training shoes for long distance runners. But he said production was changed after tests showed the benefit to sufferers of the disease.