Using modern technology, patients in various stages of Alzheimer's can live on their own without causing harm to themselves or others.

As we enter into this new age of cities in which more than half the world’s population will live in an urban area, we must also take a hard look at how we will care for the significant increase in our elderly population.

Consider, the average life expectancy has risen from 47 years in 1900 to 78 years today, and is projected to be 84.5 years by the year 2050. What this means is, in the 60 years between 2000 and 2050, the proportion of the world’s population over 60 years of age will double from 605 million to 2 billion people. This is an increase from about 11 percent to about 22 percent of the global population according to the World Health Organization (WHO).

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