For one definite example I know someone who even took a dog after it got a vertebrae out of alignment and wasn't walking right and it fixed the issue.
https://pubmed.ncbi.nlm.nih.gov/34051018/
many chronic pain conditions respond well to placebo therapies. Because pain is more centrally mediated than you’d think.
For one definite example I know someone who even took a dog after it got a vertebrae out of alignment and wasn't walking right and it fixed the issue.