The longest period of time a human has spent living continuously underwater is 73 days but now a scientist in Florida is aiming for 100 days. This is a mission to explore what happens to the body and mind in this unusual environment. Today is Day 24.

Sean was joined by retired US Naval Officer, Biomedical Engineer and aquanaut Dr Joe Dituri from his underwater bunker, which is 9 metres deep in the Florida Keys...

Image: Instagram - Joe Dituri @drdeepsea