Remote technology used to monitor signs of ageing

Imagine being able to detect subtle changes in an older person's health and behaviour - for example, a change in the height of the steps they take while walking, a shortening of their attention span while undertaking everyday tasks or a fall in blood pressure so slight it has not yet caused a single bout of dizziness. Then imagine this information collected by discreetly placed devices in the person's home, but remotely accessed by using computer technology. Such information would offer an early warning of trouble ahead, and could help provide prevention strategies and treatment to help the older person avoid falls or reduce the effects of Alzhiemer's disease. It would enable them to go on living independently, at home.