Acupuncture is a technique in which practitioners insert fine needles into the skin to treat health problems. The needles may be manipulated manually or stimulated with small electrical currents (electroacupuncture). Acupuncture promotes homeostasis and self-healing. In other words, acupuncture stimulates the body to heal itself. Acupuncture influences:

• the nervous system (along with corresponding muscles, nerves, internal organs).
• the cardiovascular system: blood flow, distribution of nutrients, hormones.
• the endocrine system: hypothalmic-pituitary-adrenal axis regulation (a major pathway for homeostatic regulation). 
• the immune system: strengthens the immune function of the body.