And the study had 13 participants. They did two runs one with the snake-oil noise and one without. Can you even call it a study? With such a small numbers the s

And the study had 13 participants. They did two runs one with the snake-oil noise and one without. Can you even call it a study? With such a small numbers the study can show any random thing you want, from reducing feet odour to increasing yawn count. Even if it worked it's poorly designed because it assumes that the benefits fade away, ie. are not present on the 2nd day. Would be probably better to split them half and give stimulation then sham and for other half other way around (tip. don't split one senior in half!).