Is a vital coenzyme naturally produced in the body that promotes cellular defense, resilience, and repair. It is found in all living cells, and it is so crucial that without it, you would be dead within 10-15 seconds. As we age, NAD declines up to 50% between 40-60 years of age. Stressors such as oxidative stress, a decline in mitochondria production, immune stress, & sleep disruption all contribute to NAD depletion.  Cardio exercise (cellular respiration) also causes a depletion of NAD – which ages you faster. NAD carries electrons from our food (our fuel) into our cells and mitochondria.