SleepTier 2 source
This common vitamin was linked to 13% better cognitive scores
ScienceDaily Aging
From the abstract
Older adults with mild cognitive impairment and sleep problems who took at least 5,000 IU of vitamin D daily scored more than 13% higher on a cognitive test than those taking none. The preliminary findings suggest vitamin D could be worth studying as a potentially modifiable factor during an early window of cognitive decline.
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