Acupuncture is the stimulation of specific points located near or on the surface of the skin which have the ability to alter various biochemical and physiological conditions in order to achieve the desired effect.

The classical Eastern explanation for how acupuncture works is that channels of energy or "Qi" run in regular patterns through the body and over its surface. These channels, called meridians, are like rivers flowing through the body to irrigate and nourish the tissues. An obstruction in the movement of these energy rivers is like a dam that backs up, creating imbalance and pain.

Stimulating the acupuncture points can influence the meridians; the acupuncture needles unblock the obstructions at the dams, and reestablish the regular flow through the meridians.

A more scientific explanation of acupuncture is that the stimulation of certain trigger points on the body by acupuncture needles prompts the body to release certain hormones and chemicals that can reduce pain, regulate the endocrine system, and calm the nervous system.

Acupuncture points are areas of designated electrical sensitivity. Inserting needles at these points stimulates various sensory receptors that, in turn, stimulate nerves that transmit impulses to the hypothalamic-pituitary system at the base of the brain.

The hypothalamus-pituitary glands are responsible for releasing neurotransmitters and endorphins, the body's natural pain-killing hormones. It is estimated that endorphins are 200 times more potent than morphine. Endorphins also play a big role in the functioning of the hormonal system. This is why acupuncture works well for back pain and arthritis and also for P.M.S. and Infertility

The substances released as a result of acupuncture not only relax the whole body, they regulate serotonin in the brain which plays a role in human and animal disposition. This is why depression is often treated with acupuncture.