OBESITY reduces blood flow to the brain and raises the risk of Alzheimer’s disease and mental illness, a study suggests.
Scientists analysed 35,000 brain scans from more than 17,000 people.
They found that as a person’s weight goes up, all regions of the brain go down in activity and blood flow.
This is a predictor that a person will develop Alzheimer’s.
It is also associated with depression, ADHD, bipolar disorder, schizophrenia, addiction and suicide.
Expert George Perry said of the US study: “This is a major advance because it directly demonstrates how the brain responds to our body.”
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Research leader Dr Daniel Amen said: “Areas of the brain vulnerable to Alzheimer’s were found to have reduced blood flow along the weight spectrum — from normal to overweight, obese, and morbidly obese.”
Dr Amen said although the results are concerning, there is hope.
He added: “One of the most important lessons we have learned through 30 years of our studies is that brains can be improved by adopting healthy habits, such as a calorie-smart diet and regular exercise.”
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Source: The Sun