Forget everything your doctor, nutritionist, trainer, and fat-shaming family member ever told you about the correlation between heart health and brain health. Packing on the pounds in middle age appears to cut the risk of developing dementia, rather than increase it, according to The Lancet scientific journal.
In a study of two million people, researchers found that compared with average weight people, underweight people had a 34 percent higher risk of developing dementia, while the very obese had a 29 percent lower risk of showing signs of the brain disease.
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