Placebo Surgery

Amazing placebo experiment with knee surgery – points to the finding that there can be ‘grades’ in the placebo effect – big pills are more effective than small pills, coloured pills more effective than white ones, inert injections more effective than pills, and sham surgery more effective than any of them.
Of course, at Universal Placebos we feel it sufficient to stay with our modest, aesthetically pleasing, small white sugar pills, in doses of three. That’s enough.