A major public health issue in Barnet is the mental health problems. Older adults and elderly people (3778 individuals) were reported with dementia in 2011 and expected to increase by 26% in 10 years. The political, social and economic impact of mental health were approached. The first Dementia Research Institute (DRI) in the UK was launched in November 2016. This paper has critically analyzed the strategies of an intervention towards dementia. The cost effectiveness of the intervention was briefly explained.