There is little control or uniformity of these products, and most consumers seem oblivious to the potentially significant health risks associated with them. Numerous psychoactive herbal medications are available to treat cognitive and emotional conditions.
Many people go to chiropractors for relief of back pain.
But there is reason for caution. Much of what chiropractors do is nonsense, and they often misinform their patients. Empirical gaps are plugged with wish-list postulates of special interest groups. Do not redistribute without obtaining permission.