Commenting on the study findings, the Alzheimer’s Society have said that the research provides evidence that excess body fat can have an impact on the way the brain functions.
The study itself set out to investigate the relationship between fat levels and cognitive function in adults who were aged 60 or above.
Those involved in the study underwent both BMI testing and a mental health test in order to determine whether the two were connected in some way.
According to the results, having both a high BMI as well as excess fat around the abdominal area was linked to a higher occurrence of poor cognitive functioning in older adults.
Dar Hyun Yoon, lead author of the study has said the findings do have important health implications, suggesting that reducing obesity levels could be central in the prevention of cognitive decline and dementia.
A spokesperson from the UK Alzheimer’s Society said: “We have all heard how a high BMI is bad for our heart but this research suggests it could also be bad for the head.
“Eating a balanced diet, maintaining a healthy weight, exercising regularly and getting your blood pressure and cholesterol checked can all make a difference.”
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