A professional freediver from Poland has made history by diving 210 meters (nearly 690 feet) on a single breath—without any oxygen tank—while holding his breath for approximately 7 minutes. The dive required extreme physical conditioning, precise mental control, and years of physiological adaptation. At such depths, the human body faces crushing pressure, oxygen deprivation, and blackout risk. The achievement highlights the extraordinary limits of human endurance and breath-hold physiology. Impo