Magnets work on iron, and this element is abundant in blood. By applying a magnetic field to the limbs of horses, blood is drawn to the area to aid in the healing process.

In 1980 while at Cornell’s vet school, the surgery department was asked to evaluate the “Blue Boot.” This device applied an electromagnetic field around the cannon bone to aid in healing minor fractures. The evaluation had a negative result, and the “Blue Boot” disappeared.

Look up piezoelectric currents on this site to understand that the body sets up an electric charge on its own, though it is not magnetic.

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