Uploaded March 2026 | Updated September 2026, 1 week ago

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During a heart attack (myocardial infarction), reduced blood flow damages heart tissue and changes how electrical signals move through the heart.

These changes also alter the heart’s magnetic field.

Researchers can identify magnetic signatures linked to heart attacks using magnetocardiography (MCG), opening new possibilities for earlier and more accurate detection.

Next: why MCG isn’t everywhere yet and what's changing now.

Learn more about how quantum technology is moving from the lab into the real world. Be sure to watch part 4 for more!

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