Massage may still feel worthwhile to the majority of people if it were also customary to drink a poison beforehand that makes 1% of customers deathly ill and ju

Massage may still feel worthwhile to the majority of people if it were also customary to drink a poison beforehand that makes 1% of customers deathly ill and just makes the other 99% feel a little weird. Most people will report "wow, that was a nice massage, and I definitely felt different afterwards", but how could you say there are any benefits beyond a simple massage, except perhaps a much heightened placebo effect? Chiropractic is risky, and strictly worse than massage or physical therapy. That's what you have to compare it with.