 What they found was that for normal people, the oxygen in your blood, the oxygen saturation, really didn't drop significantly. But if they gave those same normal people either two beers or two glasses of wine and they went to sleep, their oxygen levels actually dropped to a level where if I saw them as a patient, I'd say, well, God, you really ought to be on oxygen, to about 85%. So it's something that we never expected. The researchers...