1. What changed in the CDC guidelines? The CDC currently recommends that you “wear the most protective mask you can that fits well and that you will wear consistently.” The question, then, is what ...

The Centers for Disease Control and Prevention (CDC) has changed its guidelines about masks and respirators a number of times over the past two years and gave its most recent update on January 14, ...

Researchers have tested a variety of popular hacks for improving the fit of KN95 and surgical masks, and found that while some hacks do improve fit, they can also come at the cost of the wearer’s ...

The Centers for Disease Control and Prevention upgraded its guidance on face masks last week, encouraging people to use National Institute for Occupational Safety & Health-approved N95 respirators or ...

The REM (rapid eye movement) stage of sleep plays an important role in learning, memory and brain development. Currently, lab-based tests are required to directly gauge how much REM sleep a person is ...

I bought an eye mask for the first time a few weeks ago. It was an impulse buy at Whole Foods—along with the whole, organic rotisserie chicken that my fridge didn’t have room for. Languishing through ...