A retired British shop clerk received the first shot in the country’s COVID-19 vaccination program Tuesday, the start of an unprecedented global immunization effort intended to offer a route out of a pandemic that has killed 1.5 million. Margaret Keenan,…
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High doses of ketamine can temporarily switch off the brain, say researchers
Researchers have identified two brain phenomena that may explain some of the side-effects of ketamine. Their measurements of the brain waves of sheep sedated by the drug may explain the out-of-body experience and state of complete oblivion it can cause….
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