Magician David Blaine has set a world record by holding his breath for 17 minutes and four seconds on Oprah Winfrey's US TV show in Chicago. The star was pulled from a water-filled sphere, and then said he had begun to doubt if he would achieve his goal as he considered his heart rate too high. The previous record, which was 32 seconds shorter, was set in February. Blaine, once buried for a week in a coffin, inhaled pure oxygen beforehand to flush carbon dioxide from his blood. Setting the record was "a lifelong dream", he told Winfrey, which he said had been achieved by being in a meditative state throughout. She asked him what he was thinking about during his time in the water, to which he replied: "You." Beforehand Blaine said he was more excited than nervous about the task ahead. Struggle The 35-year-old had been wearing a silver wetsuit when he went into the sphere, which was filled with about 8,200 litres (1,800 gallons) of water. Two years ago he failed in an attempt to break the record for breath-holding under water, while simultaneously escaping from heavy chains. He had started to struggle two minutes before his nine-minute goal, at the end of a seven-day stint under water in New York. Blaine has also balanced on top of a 100ft (30m) pole, was encased in ice for two-and-a-half days, and fasted for 44 days in a box. Source: BBC