Obesity Can Increase Dementia Risk By Up To 80 Percent, Study Suggests

Obesity may increase adults' risk for having dementia. Obesity increases the risk of dementia in general by 42 percent, Alzheimer's by 80 percent and vascular dementia by 73 percent. Being underweight increases the general dementia risk by 36 percent. But researchers who carried out an international review of research since 1995 found no elevated risk in people who were normal or overweight.

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