Diver recounts breathtaking ocean plunge

A Big Blue-style Irish free diver has revealed how he plunged the height of a 15-storey building under the ocean on a single breath.

Feargus Callagy has also stunned medical experts when he is clocked in Sligo General Hospital getting his heartbeat below a rate of 31 beats per minute — the normal resting heartbeat for a human is between 60 and 100 beats.

An amazed cardiac technician guessed his heart actually slowed to 25 beats during their experiment for RTÉ’s Documentary On One, as their heart monitor clocks off when a heartbeat falls below 31.