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The complexity of this disorder arises from its unclear etiology and the lack of definitive diagnostic tools, making it difficult to differentiate from other overlapping illnesses [3, 4]
Vitamin B12, B6, or folate and cognitive function in community-dwelling older adults: a systematic review and meta-analysis
How Vitamin B12 Deficiency Is Tested Diagnosis cannot be made from symptoms alone
DSIP is found in both free and bound forms within the hypothalamus and other brain regions and may be co-localized with regulatory peptides
Demonstrates persistent cognitive benefits even after treatment cessation, suggesting true structural neurological improvements rather than temporary stimulation, supporting long-term brain health
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