i think the MedCram Dr said that double bind studies are important because you may give better care to one set etc..
He did a great video to explain the idea of the Zinc transporter.
I have the zinc..I just want a natural way to try to do the same thing without a prescription.
Its also important that the patient not know whether he is getting a placebo or not. The principles behind doing scientific studies have been around for awhile. Political polls, for example, typically include statements about margin of error. Im not sure but I think these margins are calculated based on 95% confidence level. That would mean that, if the poll was repeated, the result would be expected to be outside the error margins one time out of twenty.
By allowing large margins, pollsters are able to publish what amounts to lies, given that most people dont appreciate the fine print.