Many chiropractors, especially those in the field's early history, have proposed that mechanical disorders of the joints, especially of the spine, affect general health, and that regular manipulation of the spine (spinal adjustment) improves general health. The main chiropractic treatment technique involves manual therapy, especially manipulation of the spine, other joints, and soft tissues, but may also include exercises and health and lifestyle counseling.
Chiropractic adjustment can be effective in treating low back pain, although much of the research done shows only a modest benefit similar to the results of more conventional treatments. Some studies suggest that spinal manipulation may also be effective for headaches and other spine-related conditions, such as neck pain
