The world record for unaided time underwater is 22 minutes, by Dane Stig Severinsen. He was helped by the water being 30 degrees and the ability to slow his heart rate to below 30 beats per minute.
The world record for unaided time underwater is 22 minutes, by Dane Stig Severinsen. He was helped by the water being 30 degrees and the ability to slow his heart rate to below 30 beats per minute.