Electric and Magnetic Fields

Effect on the Human Body

Electric fields (60Hz)

Electric fields can affect a body in three different ways: weak currents can be induced in the body, electric charges can build up on the surface of your skin and hair, and the body's voltage can increase. These three effects are in proportion to the intensity of the electric field.

The human body is a good conductor of electricity. Under the influence of an alternating current, the electric charges inside the body move back and forth at the same frequency as the field (60 Hz). As a result, the field produces weak electric currents in the body. As soon as exposure to the field ends, these weak currents stop. No current is accumulated in the body. These microcurrents are generally imperceptible since they are not strong enough to excite nerve and muscle tissue.

  • Move the person to see how electric fields affect the human body.
  • Glossary

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Magnetic fields (60Hz)

The human body is a good conductor of electricity. Under the influence of an alternating current, the electric charges inside the body move back and forth at the same frequency as the field (60 Hz). In other words, the field produces weak electric currents in the body. As soon as exposure to the field ends, these weak currents stop. The body does not accumulate any current.

These microcurrents are generally imperceptible because they are not strong enough to excite nerve and muscle tissue. They are even weaker than the natural currents produced by your heart and brain. For example, under the influence of a magnetic field of 0.15 µT, the average level found in homes, the microcurrents produced in your body are about 5,000 times weaker than your body's natural currents.

  • Move the person to see how magnetic fields affect the human body.
  • Glossary

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