Can a human die if submerged in highly oxygenated liquid water and breathe normal?

Question

Can a human die if submerged in highly oxygenated liquid water and breathe normal?

In: Biology

Answer 1

In general, water just can’t have enough oxygen in it *and* absorb enough CO2 (this is really important) to support an organism that normally breathes air. [Studies](https://en.wikipedia.org/wiki/Liquid_breathing) (link to wikipedia) use a different liquid, and its only use in humans tends towards very specific medical cases (and some speculative fiction, such as a James Cameron movie from 1989).

edit: removed ‘usually’, because there’s flat out nobody using water in lungs to breath.