Imagine NAD+ as a brain booster, like a supercharge for your smarts. It's like a secret ingredient that gives your memory and brain a big lift. When you have more NAD+, it's like giving your brain extra energy. Repairing your DNA helps your brain cells communicate better, forming stronger connections that boost your memory and thinking skills. NAD+ is like a superhero that protects your brain from damage and helps repair any wear and tear. It's like having an army of little repairmen working inside your head, fixing things up and keeping your brain in top shape. So, by increasing NAD+ levels, you're giving your brain the extra support it needs to remember things, think clearly, and stay sharp as a tack.