
Could sunshine reduce your dementia risk? Here's what a new study says
A new study reveals a potential link between vitamin D levels in midlife and the risk of developing dementia. We spoke to experts about a study on brain health that looked into the association between higher vitamin D and lower instances of tau protein, a key marker for dementia.
A new study says a key vitamin, provided by the sun, could play a big role in long-term brain health.
The study followed 800 people, more than 16 years of age. It determined that those with higher vitamin D levels in their 30s and 40s had less tau protein buildup on the brain later in life. Tau protein is a key marker linked to dementia.
"These are abnormal clumps of protein that are not naturally situated in these neurons. They gum up the works and allow the neurons to malfunction, and eventually they are toxic. They cause neurons to drop out and die. The accumulation of enough cell deaths then results in the malfunction of the brain," said Tom Mikkelsen, CEO and scientific director of the Ontario Brain Institute (OBI).

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While the report gives some positive advice for dementia prevention, it does not provide proof that vitamin D will directly stops the disease.
A routine blood test will determine your vitamin D levels. If your levels are on the low end, your doctor may suggest supplements, diets changes or more sunlight exposure.
Learn more about the benefits of vitamin D on the brain in lowering your dementia risk that leads this article.
Thumbnail courtesy of Getty Images/Gilnature Creative #: 1301094916. Vitamin D/iStock/Getty Images Plus.
