Well if you read the paper you'll see that the Introduction cites a lot of other research that is not supported by P&G. Not that you shouldn't be skeptical. Jus

Well if you read the paper you'll see that the Introduction cites a lot of other research that is not supported by P&G. Not that you shouldn't be skeptical. Just pointing out that they didn't just pull the idea for this study out their ass. Also the statistical significance and magnitude of effect is quite mindblowing