| Themes > Science > Physics > Electromagnetism > Electrostatics > Capacitors & Dielectrics > Capacitors : devices for storing charge > Electric fields and potentials in the human body |
The body is full of electrical impulses, and we can measure these signals using electrodes placed on the skin. The rhythmic contractions of the heart, for example, are caused by carefully timed electrical impulses. These can be measured with an electrocardiogram (ECG or EKG). If the heart is malfunctioning, this will usually produce a change in the electrical activity of the heart, with particular changes corresponding to particular problems. Similar analysis can be done on the brain using an electroencephalogram (EEG). |
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