BuzzSkyline writes "A few minutes in a high magnetic field (1.3 Tesla) is enough to thin blood by 30%, potentially leading to a new drug-free therapy to prevent heart attacks. The powerful field causes blood cells to line up in chains that flow much more easily than randomly-scattered individual cells, according to research scheduled to appear this month in the journal Physical Review E." I can't help thinking of Penn & Teller's look at magnets-as-medicine, though at least the idea here described sounds testable and doesn't rely on the power of suggestion.
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