Participants were randomly assigned to receive high oxygen (hyperoxia) or a lower amount of oxygen intended to maintain normal blood oxygen levels (normoxia). Two hundred study participants were ...

image: The protective effects of hypothermia on heart cells was reduced in mice with chronic hypoxia (CH) compared to mice with normal oxygen levels. CH mice displayed increased cell death (green).

Vital signs, those fluorescent green numbers that beep, ding, and dash across black screens on the monitors in hospital rooms, have become a new source of angst during the coronavirus pandemic. One of ...