Longevity/Cellular

Few molecules in cellular biology have attracted as much sustained research attention over the past decade as NAD+ (nicotinamide adenine dinucleotide). It sits at the centre of energy metabolism, DNA repair signalling, and a family of enzymes implicated in ageing biology, which is exactly why it shows up so often in both serious research literature and considerably less rigorous wellness marketing. This guide sets out what NAD+ actually does at the cellular level, what recent