Assertion: magnetic field | /r/CreatedBy | human body
Facets:
Source sentences:
text: The present scientific definition took form in the 1970s, when an increasing number of researchers began to measure the magnetic fields produced by the human body.
text: Biomagnetism is the phenomenon where magnetic fields are produced by the living things, especially by the human body; (different from magnetic fields applied to the body, called magnetobiology).