For divers, yoga may be one of the best practice in order to increase ones lung capacity. Zubin Atré teaches yogic breathing and how it can be integrated with a few postures so that more oxygen can flow through efficiently and help divers be more relaxed deep underwater.
Diver Walaa Hafez breaks World Guinness Book record on June 4 2015 with longest scuba dive open salt water at Sharm El Naga, Egypt. His record time is 51 hours.24 min. 13 sec. Click the link for video