Across centuries of human inquiry into what sustains the body, the answer often returns to the simplest provisions of the natural world. Recent research now adds a quiet affirmation to that tradition: a daily handful of nuts — no more than an ounce — appears meaningfully linked to a reduced risk of high blood pressure, one of the most pervasive threats to cardiovascular health worldwide. The finding matters not because it is dramatic, but because it is accessible, asking little of people while offering something genuinely protective in return.