30 years ago it was thought that if a little oxygen is good for you, then a lot must be even better. And that was the case until studies proved that too much of a good thing really isn’t the best for our patients. Oxygen titration is now recommended in many nationally recognized programs such as ACLS, NRP, PALS and more. But why can’t we give some extra oxygen to our patients? What bad could really happen if we continue to do what we have been doing for 30 years?