MICHAEL DONNE / SCIENCE PHOTO LIBRARY MICHAEL DONNE / SCIENCE PHOTO LIBRARY
Acupuncture needles in a woman's ear and shoulder. This traditional Chinese practice uses needles to restore an energy flow along lines (meridians) that pass through acupuncture points on the skin. It is used to relieve pain and to treat a wide range of disorders. Modern Western medicine explains the pain-relieving effects by suggesting that the needles stimulate the release of endorphins, the body's natural painkillers.
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