THERE may be a scientific explanation for the vivid near-death experiences, such as seeing a shining light, that some people report after surviving a heart attack. Apparently, the brain keeps on working for up to 30 seconds after blood flow stops, according to a study published in the Proceedings of the National Academy of Sciences. University of Michigan scientists did their research on nine lab rats that were anesthetised and then subjected to induced cardiac arrest as part of the experiment. In the first 30 seconds after their hearts were stopped, they all showed a surge of brain activity, observed in electroencephalograms EEGs that indicated highly aroused mental states. via News.com.au.
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