What Is NAD+? The Science Behind Cellular Energy and Repair

NAD+ is a coenzyme involved in cellular energy production, DNA repair, and many of the processes that help cells function properly over time. In this video, we explain what NAD+ is, how it works in the body, and why it has become an important topic in aging, metabolism, healthspan, and healthy aging research. Full article: https://longevityinsights.co.uk/what-is-nad/ In longevity science, NAD+ is widely studied because it plays a central role in mitochondrial function, energy metabolism, cellular repair, and stress responses. Researchers also examine how NAD+ relates to biomarkers of aging, inflammation, and metabolic health, as levels may change over time. Understanding NAD+ can help clarify why it is considered relevant to resilience, biological aging, and the maintenance of long-term cellular function. If you're interested in the science of longevity and healthy aging, consider subscribing for more evidence-based videos. Evidence-based supplements that support healthy aging: [https://www.longevity-essentials.com](https://www.longevity-essentials.com) in the UK [https://www.longevity-essentials.eu](https://www.longevity-essentials.eu) in Europe Topics covered in this video * What NAD+ means * How NAD+ supports cellular energy production * Why NAD+ matters for repair and metabolism * The link between NAD+, mitochondria, and aging * How biomarkers relate to biological aging * Why NAD+ is studied in longevity science Search terms * what is NAD+ * NAD+ explained * NAD and aging * NAD+ and longevity * cellular energy and repair * NAD metabolism explained * mitochondria and aging * biomarkers of aging * healthy aging science * longevity science explained * NAD+ cellular repair * NAD+ and metabolic health