Patients with Werner Syndrome age significantly earlier than others. In animal models for the disease supplements of the drug NAD+ prolong life and delay age-related diseases. This is shown in new research from the Center for Healthy Aging, the University of Copenhagen, and the US National Institutes of Health, just published in Nature Communications. It also shows that Werner patients have less NAD+ in the blood. The results are so promising that clinical trials of patients with Werner Syndrome are on the way.