[gaoshan]

The site that is linked here is a site dedicated to the sale of the drug NAD so it is not objective on the topic of aging. Not trying to debunk anything but let's put on our skeptic hats here and be extra vigilant, given the source.

Regarding NAD, not the article but it pertains to the subject, I actually think it has promise and as an older person take NMN to very (like... WOW, very) positive result (an NAD precursor that is arguably better as it is used by the body to create NAD whereas the consumption of NAD itself via the digestive system is in need of study as the suspicion is that it doesn't make the journey very successfully).