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Weekend TODAY’s Peter Alexander recounts a weird dream he recently had. Then, Harvard dream researcher Deirdre Barrett explains why some people, like Peter, are having vivid dreams during the global coronavirus pandemic. She says some reasons may include sleep deprivation and waking up naturally after a dream period.April 25, 2020Share your dreams in Barrett’s survey:

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According to the WHO, there is not enough evidence about the effectiveness of antibody-mediated immunity to guarantee the accuracy of an "immunity passport" or "risk-free certificate." Denis Balibouse, Reuters/file The World Health Organization (WHO) warned on Saturday that there is no evidence that people who test positive for the new coronavirus are immunized and protected…

SARS-CoV-2, the coronavirus which causes COVID-19, has infected almost 2.5 million people around the world and claimed 170,000 lives.But some people don’t even get symptoms. Recent studies suggest as many as 80 percent or more of those infected are “silent carriers," showing no or very mild symptoms.It seems children and young, healthy people are more…

Thomas Oxley wasn’t even on call the day he received the page to come into Mount Sinai Beth Israel Hospital in Manhattan. There weren’t enough doctors to treat all the emergency stroke patients, and he was needed in the operating room. The patient’s chart appeared unremarkable at first glance. He was male, no medications, no…