A: Recent studies published in neurological journals have warned against manipulation of the neck due to the risk of vertebral artery dissection. There are serious problems with the statistical significance of these studies, yet neurologists are making blanket statements against cervical adjustments without reviewing the information given in the main study. There are risks with any procedure performed in physical medicine. You have a better chance, though, of being struck by lightning multiple times than having a stroke from a neck adjustment. The procedure is one of the safest in medicine. Taking a medication for headaches is far more dangerous.