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Psychiatrist studies near-death accounts and says they make you happy (www.dailymail.co.uk)

Dr Bruce Greyson spoke with dozens of people who had a near-death experience and provides the accounts in his new book After. He provides his insights into the unusual experiences people had.

Smart materials: From tiny robots to colour-swapping clothes (www.bbc.com)

We’ll Have Herd Immunity by April (www.wsj.com)