for the first one yes it can, second youre citing
this study which was horribly designed + has been contradicted countless times in a million other studies + and has such a small number of patients any results it gets are clinically insignificant, and thirdly yeah im sure taking a magic pill somehow did that, if i take duck penis 20C i will be able to lift 50 more pounds magically and not because im doing other things that cause my muscles to grow stronger.
placebo effect can also relieve the symptoms of hay fever, im afraid
also you dont know more than me kid, dont even fucking try