If a diver using oxygen cylinder to breathe under water comes back to the surface very quickly holding his breath, the air inside his lungs will expand rapidly due to the lower pressure near the surface, rupture pulmonary veins and enter the circulation causing a fatal condition called air embolism. This could happen even from a depth of 5 metres.
But where it gets interesting is that you cannot die if you take a breath on the surface, dive and return to the surface still holding that breath, no matter how deep that dive.
Almost everyone returned during Dussehra. Me, my roommate Anilkumar, harinath, etc are among the very few left because they haven't left.
Was at anatomy exhibition hall from 1 to 8 yesterday. Learned some very basic Kannada.
Reading in spirit after pooja.