According to the Alzheimer's Society, the Framingham Heart Study has again highlighted depression and dementia link.

Researchers after analysing the data said that having depression means the risk of developing dementia in life is two times.

As a part of the research, for about 17 years, 949 elderly people were examined. The results stated that about 22 per cent people developed dementia and they also had depression when the study started. And about 17 per cent of those who did not have depression developed dementia.

This clearly states that those who have depression are more prone to develop dementia.

Dr Anne Corbett from the Alzheimer's Society said that it is still not clear that what is the link between depression and dementia.

She stated, "It might not be that depression itself is the risk factor for dementia. It might be that the result of depression, what it does to your activities and lifestyle, could be very important in the risk factor of dementia later on."  

Researchers also agreed to Corbett and said that it is not necessary that those who are suffering from depression are bound to develop dementia.