Entire Brazilian city will be vaccinated against COVID-19 in giant experiment By Yasemin Saplakoglu Scientists will vaccinate all the adults in a single city to see whether a COVID-19 vaccine will reduce cases.
LSD alters consciousness by breaking down barriers in the brain By Yasemin Saplakoglu Brain scans reveal that LSD may free the brain from its own natural barriers.
At least 20 million years of life have been lost to COVID-19, study suggests By Rachael Rettner On average, each COVID-19 death resulted in 16 years of life lost.
Incredibly detailed video shows DNA twisting into weird shapes to squeeze into cells By Yasemin Saplakoglu Scientists recently captured a high-resolution video of DNA shimmying into weird shapes in order to squeeze inside cells.
Severe COVID-19 may damage the eyes, small study hints By Rachael Rettner The researchers saw "nodules" at the back of patients' eyes, which can be signs of inflammation or direct damage to the eye.
Hundreds of animal species could harbor novel coronaviruses By Nicoletta Lanese A new model predicts which mammals might be likely hosts for new coronaviruses.
Why do we breathe so loudly when we sleep? By Tara Santora Why do people breathe so loudly when they're asleep?
Giant hair ball tears through teen's stomach, requiring surgery By Rachael Rettner The hair ball was more than a foot long and completely filled her stomach.
Who should get the Johnson & Johnson vaccine over the mRNA vaccines? By Jocelyn Solis-Moreira, MS Each vaccine has its pros and cons, but all work extremely well.
Is champagne stronger than non-bubby alcoholic drinks? By Isobel Whitcomb Do you need to exercise extra moderation with the champagne this Valentine's Day?
Prior infection with common cold viruses won't protect against COVID-19 By Yasemin Saplakoglu For months, scientists have wondered whether past exposure to seasonal coronaviruses that cause common colds might prevent people from getting a severe case COVID-19.
CDC issues new guidelines for safely reopening schools By Rachael Rettner The recommendations provide a "long-needed road map" for reopening schools, officials said.
Diabetes drug led to dramatic weight loss in large trial By Rachael Rettner Participants lost 15% of their body weight.
California coronavirus variant is spreading rapidly. Should we worry? By Rachael Rettner Known as CAL.20C, the variant now accounts for nearly half of COVID-19 cases in Southern California.
COVID-19 vaccines: What does 95% efficacy actually mean? By Anna Nowogrodzki You have likely heard that Pfizer's COVID-19 vaccine efficacy is 95%, Moderna's is 94% and Johnson & Johnson's is 66%. But what do these numbers actually mean?
Is there a limit to how much the coronavirus can mutate? By Yasemin Saplakoglu The number of possible genetic mutations is greater than all the atoms in the visible universe,
Next flu season could be extra weird, and potentially very bad By Nicoletta Lanese Upcoming flu outbreaks will be less predictable than those of the past.
Coronavirus may infect key brain cells, causing neurons to die By Nicoletta Lanese A preliminary study hints that the virus may infect astrocytes, triggering downstream effects.
CDC says double-masking improves protection from COVID-19 By Rachael Rettner The study tested several methods for improving mask fit.
Europe's oldest person survives COVID-19 By Yasemin Saplakoglu Sister André has recovered from COVID-19 in time for her 117th birthday this week.
