The new studies raise questions about how to balance the undeniable health gains of working out with the downsides of breathing in bad air. Photograph: iStock

Work out in polluted air and you may miss out on some of the brain benefits of exercise, according to two, large-scale new studies of exercise, air qu(...)

A poster advising against the consumption of wild animals in Wuhan, China. Photograph: Gilles Sabri/The New York Times

Scientists released a pair of extensive studies on Saturday that point to a market in Wuhan, China, as the origin of the coronavirus pandemic. Analys(...)

The study did not consider the coronavirus vaccine made by Johnson & Johnson, but one of the researchers said he expected the immune response to be less durable than that produced by mRNA vaccines. File photograph: Saul Martinez/The New York Times

The vaccines made by Pfizer-BioNTech and Moderna set off a persistent immune reaction in the body that may protect against the coronavirus for years, (...)

Roger Penrose and Stuart Hameroff believe that the human brain works more like a quantum computer than any classical computers. Photograph: Getty Images/iStockphoto

In the second part of a series on the science of consciousness, Seán Duke features those who believe the human brain works more like a quantum compute(...)

Microbiologists at the University of Arizona have reported that touchscreen smart devices may have up to 10 times more bacteria than a toilet seat. Photograph: David Paul Morris/Bloomberg

The Covid-19 pandemic has been a forceful reminder of the pathogens present in our everyday environments. Together with Covid-19, most of us know that(...)

Scientists worry that if vaccinated people are silent spreaders of the virus, they may keep it circulating in their communities, putting unvaccinated people at risk. Photograph:  Matthew Horwood/Getty

The new Covid-19 vaccines from Pfizer and Moderna seem to be remarkably good at preventing serious illness. But it’s unclear how well they will curb t(...)

 Joe Biden, Democratic presidential candidate. on the campaign trail as he visits a a cafe in in Phoenix, Arizona. Photograph: Brendan Smialowsk/ AFP/Getty Images)

Stepping off the plane in Phoenix, Arizona, passengers are welcomed by a wall of heat. It may be mid-October but the temperature on this autumn weekda(...)

Although researchers cannot forecast how long these immune responses will last, many experts consider the data an indication that the body’s most studious cells are doing their job. Photograph: iStock

To the immune system, not all germs are equally memorable. But our body’s cells seem to be seriously studying up on the coronavirus. Scientists who h(...)

A man wearing a facemask and face shield walks in a downtown park in California. Photograph:  Robyn Beck/AFP via Getty

More than two months after the United States recorded its worst day of new infections since the start of the coronavirus pandemic, the nation reached (...)

Jonathan Van Ness: ‘You’re never too broken to be fixed.’ Photograph: Isak Tiner/New York Times

Jonathan Van Ness was having a late breakfast at the Empire Diner, around the corner from his one-bedroom apartment in the Chelsea area of New York ci(...)

  • 1
  • 2
  • 3
  • Next
  • Last »