The problem isn't the placebo effect per se. Nor with it's application as a treatment. It's with misleading people as to what is actually helping them. For exam

The problem isn't the placebo effect per se. Nor with it's application as a treatment. It's with misleading people as to what is actually helping them. For example selling magical crystals to adjust your aura. I don't know about studies and evidence specific to yoga, but would suspect it's benefits are a combination of real and placebo. Thus it isn't all placebo effect as there is a foundation of actual therapeutic benefit.