Being obese or underweight can increase the risk of Alzheimer's disease by 80pc, finds study - Daily Mail 8th May 2008

Obesity pushes up the risk of developing Alzheimer's by 80 per cent, claim researchers. But being underweight can raise the chances of suffering any type of dementia around a third. Latest evidence shows maintaining a healthy weight or even being slightly overweight is the best way to avoid an increased risk of mental decline in later years.

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