www.ahajournals.org/doi/full/…/01.str.32.5.1054

Thank your pointing this out. It’s not just any stroke too, it’s primarily vertebral/basilar artery distribution strokes. Those supply the brain stem which includes such necessary functions as control of breathing and consciousness. You don’t want a stroke anywhere, but particularly not there.

Some chiropractors might swing back that, you’ve only showed correlation not causation. Well, when we have no clear evidence of chiropractic neck manipulation being helpful for anything, and we have a likely very dangerous correlation, the clinical parsimony is just not there. So no one is going to run that study (give a large amount of people neck manipulation, a large amount of people no neck manipulation, and compare rates of stroke that occur afterwards), it would be very unethical, no irb would ever approve that.