A chiropractic adjustment is a therapy using a specific force in a precise direction, applied to a joint that is stuck or hypomobile. This may be done manually (with hands) or with very gentle instrument-assisted procedures to add motion to a joint, helping it move more correctly — reducing joint load, friction, pressure, inflammation and swelling, and decreasing pain through neurological mechanisms outlined in the medical research. It is an extremely safe and effective procedure that improves joint function (specifically spinal function), allowing for better movement and decreased pain without taking drugs. There are hundreds of ways to adjust the spine; some adjusting methods are quick, others use slow constant pressure.