Should you be taking NMN or NAD+? That’s the latest question in the anti-aging debate. If you’ve been swept into the longevity space, you’ve probably heard that NAD+ levels decline with age. With that drop could come a host of unwanted effects: accelerated aging, cognitive slowdown, muscle weakness and fatigue. That’s one reason NAD+ supplements have exploded in popularity in recent years. But, experts and users warn that your NAD+ supplement might not be as effective as you think. Several