NMN ⇒ NMN supplementation improves endothelial function, neurovascular coupling responses & cognitive function in aged mice

[SeanYates]

In Summary
NMN increases

• cerebromicrovascular protective effects
  endothelial function
  NVC responses in the aged cortex

These likely contributes to improvement of higher cortical function and the potential use of NMN as therapy for prevention of aging-induced vascular cognitive impairment
In laboratory animals long-term intake of NMN is well-tolerated without side effects
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6477631/