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A matter of life and brain death

9 February 2011

IN 1907, physician Duncan MacDougall . He placed dying people on scales and weighed them as they passed away. The people supposedly lost an average of 21 grams, which MacDougall – glossing over the uncertainties in his measurements – took to be the soul leaving the body.

Even today people still seek transcendental truths in the scientific study of death. When researchers detected a wave of electrical activity in patients’ brains after their hearts had stopped, the spiritualist Deepak Chopra , arguing that they were evidence that consciousness can endure without…

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