
Biohackers and stars like Hailey Bieber are obsessed with this longevity molecule — but is it the ‘holy grail of ...
You know about DNA, but you may not have heard of NAD. You wouldn’t be alive without it. NAD — short for nicotinamide adenine dinucleotide — is critical for energy production, DNA repair and cell survival. Scientists are investigating the potential for NAD …