Subluxation is the irritation of the spine that is caused by a shift of the vertebrae out of the proper position and alignment, which puts excess pressure on the spine. When these nerves are irritated it leads to malfunctioning and interference with transmission of nerve messages.
All of your bodily processes are controlled by your nervous system. When signals are misfired, the correct signals will not be transmitted to the various areas of your body. If the body isn't receiving the signals, than it is not working at its best like it should.
Chiropractors have the training to locate and effectively treat subluxations. This is typically performed with a sequence of chiropractic manipulations.