Nicotinamide Mononucleotide, commonly known as NMN, is a compound that has captured the attention of the scientific community for its potential to support cellular health and combat the effects of aging. As a direct precursor to Nicotinamide Adenine Dinucleotide (NAD+), NMN plays a crucial role in revitalizing cellular functions that naturally decline with age. NAD+ is a coenzyme present in all living cells, indispensable for energy metabolism, DNA repair, and gene expression. The decrease in NAD+ levels as we age is linked to a myriad of age-related conditions, from metabolic disorders to cognitive decline. NMN supplementation helps to replenish these declining NAD+ levels, thereby supporting cellular vitality. Research has explored NMN's impact on various bodily systems, including brain function, cardiovascular health, and muscle performance. Studies in animal models have shown that NMN can improve aerobic capacity, enhance insulin sensitivity, and protect against age-related physiological deterioration. While human trials are still in their early stages, the initial findings are promising, suggesting that NMN may offer significant benefits for overall healthspan. Understanding the science behind NMN is key to appreciating its potential as a tool for promoting cellular health and mitigating the impacts of aging.