NMN is clearly a murine fountain of youth. But what about humans? Shin-ichiro Imai has said that NMN may improve adult human metabolism, rendering it more like that of someone ten or twenty years younger.34 His team is now studying NMN in humans. David Sinclair, Harvard University’s noted anti-aging researcher, whose research on resveratrol, NAD+ and sirtuins is world renowned, is also conducting human trials. He is taking NMN himself; he has said his lipid profile has improved dramatically and he feels more energetic and that his blood markers, at nearly 60 years old, are closer to those of a 31-year-old.