A tragic incident occurred at an On Air gym in eastern Paris, where a 34-year-old woman became brain-dead after suffering severe injuries in a cryotherapy tank. The supervising employee, a 29-year-old named Alison, was found dead at the scene, having suffocated, which raised concerns about a possible nitrogen leak displacing oxygen. The gym was evacuated, and three others received treatment; the event is under investigation, highlighting the risks associated with cryotherapy, which has previously faced scrutiny following similar fatal incidents.
