Caption

Acupuncture needle. Coloured scanning electron micrograph (SEM) of a disposable acupuncture needle. In Eastern medicine it is thought that illnesses can be cured by inserting needles into parts of the body along energy lines known as meridians. In the West it is believed that such treatment causes the production of endorphins, the body's natural painkillers. Magnification: x2 at 6x7cm size.