Hmmmm... I'm not to sure about this one guys, but hard to ignore the science. Information source; Lifespan (book) by Mr. David Sinclair, PhD.

I also mentioned Parabiosis, Calico, NMN, NAD+, NR, Rapamycin, Resveratrol and Metformin.

Nicotinamide Mononucleotide or NMN has been touted as the next age reversal drug. I am not in any shape or form saying it is. Medical studies and pre-clinical trials show that NMN biosynthesis helps the body increase levels of NAD+, which in low levels has been correlated to Alzheimer's, Choronory Disease and Diabetes.
Please do NOT yet try NMN as it is not yet been proven safe for human trials...