With Alzheimer's disease become more popular with people, experts believe that a wearable camera could help people recall the event and emotions related to it. Microsoft introduced Sensecam that takes photos of daily events every 30 seconds so they can be played back later at high-speed to jog memory.

Researchers are now testing the device on healthy elderly people who would fight to recall memories as a result of ageing as well as patients with Alzheimer's. The camera, which can fit in the palm of a hand, can store up up to 30,000 images sufficient for a fortnight's use.

Source