Researchers complete first human trial on viability of enteral ventilation

If this proves to be effective (not just safe and well tolerated which is the scope of this study) it'd be interesting to see how this would be adopted by extreme athletes. Free divers who can go deeper, cyclists who can ride harder, sprinters who can run longer at full speed because they're retaining an oxygen-rich slurry in their bowels.

> Free divers who can go deeper

Makes me wonder if free divers could possibly already cheat by swallowing air, perhaps even pure O2, before dives, to slightly increase maximum time submerged through gut gas exchange. Althought this probably would mess with buyoancy a bit.