/tags/spreading-depolarization spreading depolarization en-US Copyright Mon, 12 Mar 2018 10:00:00 GMT /local-news/2018-03-12/the-sounds-inside-your-brain-right-before-death Crackling sounds deep inside the brain signal normal communication among an estimated 100 billion neurons. But after a traumatic health event like a brain… Mon, 12 Mar 2018 10:00:00 GMT /local-news/2018-03-12/the-sounds-inside-your-brain-right-before-death Ann Thompson