A freediver has achieved one of the most extraordinary human feats ever recorded by holding his breath underwater for 29 minutes, breaking the previous world record by a wide margin. This level of breath-hold endurance surpasses the capabilities of nearly all marine mammals, including dolphins and seals, and showcases the extreme limits of human physiology and mental control. • The diver used advanced breath-hold techniques such as oxygen pre-breathing, lung-packing, and deep relaxation to exten