Most people look at sodium like it’s just a number on a nutrition label, but it’s actually part of the wiring that helps your brain stay level under stress.⁠ When sodium runs low, your body shifts gears to keep things in balance — sometimes at the expense of focus, motivation, or joy. ⁠ It’s not a direct cause-and-effect story, but it’s worth remembering: Your mood and your chemistry are on the same team. Sodium is one of the levers that can keep them aligned.⁠ Even small dips in electrolyte balance can feel big when life’s already pushing your limits.