The effects of Nicotinamide mononucleotide (NMN) supplementation observed in mice have sparked interest in the potential benefits it may offer to human health, particularly in the realms of cerebrovascular and cognitive health. This study was performed on old mice given a supplement called Nicotinamide mononucleotide (NMN). This supplement was found to reverse some age-related issues in the blood vessels of the brain, and increase the communication between brain activity and blood flow, known as