Face masks can help slow the spread of coronavirus disease 2019 (COVID-19). Learn about mask types, which masks to use and how to use them.

As multiple wildfires burn across Canada and the western U.S., millions are being exposed to the dangers of smoke inhalation.

Add Yahoo as a preferred source to see more of our stories on Google. This upcoming winter season, the stage is set for seasonal sickness and COVID-19 infection rates to surge aggressively, in what's ...

Face masks are no longer required in most indoor public spaces, but the rise of highly infectious COVID-19 variants has had plenty of people rethinking their personal mask usage. As of now, the ...

A screenshot of a 2022 article about microplastics being found in the lungs has been shared by social media users to suggest facial coverings worn during the COVID-19 pandemic are to blame. Experts ...

Red light therapy has long been used to reduce inflammation and improve skin texture, which is why LED devices are having a moment—you can reap some of the benefits without booking a professional ...

On one level, the world’s response to the coronavirus pandemic over the past two and half years was a major triumph for modern medicine. We developed COVID vaccines faster than we’d developed any ...

In their basic form, sleep masks help block light that can prevent sleep or reduce its quality. Some models might offer limited additional benefits. Light plays an important role in sleep. A person’s ...