A controversial anti-aging supplement appeared to slow aging in cells with a rare condition that accelerates aging and kills sufferers by the age of 45.
NAD+ is a pill designed to boost our levels of a molecule called NAD (nicotinamide adenine dinucleotide), which is abundant in children, fuels metabolism, and seems to keep cells fresh.
In the past decade, there has been a flurry of excitement over NAD+, with scores of scientists claiming to have evidence that NAD+ slows aging in animals by fueling new cell creation, and just as many critics saying the evidence is weak.