Are sleep trackers accurate? Here's what researchers currently know

Sleep trackers use an algorithm to estimate how much time you spent asleep based on body movements. Andrey_Popov/ Shutterstock An estimated one in three people report regular sleep complaints. So it’s hardly surprising people are more concerned than ever about getting enough sleep. This blossoming interest has seen an explosionContinue Reading

Australian skipper Tim Paine on Tuesday defended star batsman Steve Smith, who was accused of scuffing up the guard mark of Rishabh Pant during the drawn third Test in Sydney, asserting that the Indian team would have raked up the issue if any wrong was committed. Smith, a former AustraliaContinue Reading

Why resistance is common in antibiotics, but rare in vaccines

Antibiotic resistance is a worldwide problem to the extent that there is a grave risk that common infections will soon become untreatable. Meanwhile, vaccines developed nearly a century ago still protect us from deadly diseases. What might explain this difference? Bacteria have evolved resistance to every antibiotic ever developed. SometimesContinue Reading

Mandatory remote teaching could reduce inequality during the pandemic – but delivering it will be difficult

SeventyFour/Shutterstock The lives of millions of parents and children were turned upside down when COVID-19 forced school lockdowns in April 2020. With a new national lockdown announced for England on January 4 2021, many parents and schools have once again been caught unprepared. This time, however, schools in England areContinue Reading