13. Reduced cognitive function
Recent study publications have indicated that low levels of vitamin D are linked with poor cognitive functions. This can occur in part due to the anti-inflammatory properties of this hormone, which protects blood vessels from deterioration.
The declining integrity of blood vessels is crucial in the development of diseases which produce a decline in cognitive function. Such a finding has raised new hopes that vitamin D supplementation may be helpful in combating cognitive function-impairing ailments.
Studies have demonstrated that the lower the performance on cognitive function scale, the lower the levels of vitamin D in the blood.
14. Night blindness and eye changes
Just like vitamin A, vitamin D is also essential for your eye sight. You might be amused to know that adequate vitamin D levels in blood parallel good vision. Since the hormone reduces unnecessary inflammation, it protects the integrity of all the blood vessels, including those of the eye.
A research work showed that vitamin D supplementation in lab rats resulted in decreased retinal inflammation and enhanced vision.