Think of NAD+ as a superhero for your heart. It's like a powerful coenzyme that works behind the scenes to keep your ticker in top shape. When you have more NAD+, it's like giving your heart an energy boost. It helps your heart's powerhouses, called mitochondria, produce more energy, which makes your heart muscles stronger and more efficient. NAD+ also activates these special proteins called sirtuins that act like guardians of your heart cells. They help repair damaged DNA, reduce inflammation, and keep things running smoothly. Plus, NAD+ is like an antioxidant shield that fights off harmful molecules that can damage your heart. So, by increasing NAD+ levels, you're giving your heart the extra support it needs to stay healthy and keep pumping strong.