CNN Anderson Cooper 360 December 4, 2013 06:53:00
Decompression? >> yeah, when you're breathing compressed air for that long period of time, the nitrogen builds up in your blood stream. to be able to get him to put on that diving helmet and essentially, i'm assuming, this guy has never dove before in his life and to coach him and have him remain calm enough to put that helmet on, exit the boat, enter into a decompression chamber under water and essentially decompression chamber allows enough time for his blood, oxygen levels and blood stream to return to normal so he can go to the surface is just incredible story all around. >> and for him to...