Maria Godoy

How much should you trust the results of a rapid antigen test? That's a question many people are asking these days, amid recent research and anecdotes suggesting these tests may be less sensitive to omicron. Researchers are working fast to figure out what's going on and how to improve the tests.

Making exercise a daily habit can feel daunting if it feels like it counts only when you go all in. Instead, remember that every small movement counts.

Simple actions like standing up at your desk for part of the day, taking the stairs instead of the elevator and throwing out the trash can make a difference for your overall health.

Updated January 19, 2022 at 2:47 PM ET

After months of public health experts urging Americans to start wearing higher-quality masks, the Biden administration announced they're sending free ones to pharmacies and community health centers in the near future.

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Trying to eat less meat? Make sure your meat-free meals are just as satisfying by seasoning your vegetables with the same spices you use to cook meat. It will carry some of that flavor over.

Keep your cupboard stocked with spices like cumin, paprika and ginger that enhance any meal. Fresh herbs like rosemary, thyme and basil can also add a nice touch.

With another coronavirus variant racing across the U.S., once again health authorities are urging people to mask up indoors. Yes, you've heard it all before. But given how contagious omicron is, experts say, it's seriously time to upgrade to an N95 or similar high-filtration respirator when you're in public indoor spaces.

"Cloth masks are not going to cut it with omicron," says Linsey Marr, a researcher at Virginia Tech who studies how viruses transmit in the air.

America spends $3.8 trillion on health care annually, more than any other country. Yet when it comes to creating a more equitable public health system, it could learn a thing or two from some of the world's poorest nations, says Katie Bollbach, executive director of Partners in Health-U.S.

Updated December 20, 2021 at 6:45 PM ET

Here we go again.

Just in time for the holidays, federal officials announced Monday that the omicron variant of the coronavirus is spreading quickly in the U.S., and it's now the dominant strain in the nation, according to the Centers for Disease Control and Prevention.

I've got a kitchen confession: I don't do Thanksgiving turkey.

It's not because of dietary restrictions, although I do try to limit my meat consumption. It's more a matter of soul-crushing disappointment. Years ago, my family and I decided we weren't going to serve Thanksgiving turkey anymore because it kept turning out dry and flavorless.

What's the point of getting up super-early and spending hours laboring and stressing in the kitchen if you're just going to end up with a bland bird?

I don't need that kind of holiday heartache.

Which masks are best to keep kids safe? It's a question on many parents' minds as students return to in-person school amid a huge wave of coronavirus infections. Masking is a key safety measure in schools for all kids, especially for children too young to be eligible for any COVID-19 vaccine.

At 72, Dolores Fontalvo is part friendly neighbor, part psychologist. She's also a linchpin in the state of Maryland's successful effort to narrow the vaccination gap between its white and Latino residents.

A small new study offers a glimmer of hope that giving organ transplant recipients a third dose of the COVID-19 vaccine could boost their protection against the coronavirus.

That's important because prior research has shown that nearly half of organ transplant recipients failed to show any antibody response even after two doses of the Pfizer or Moderna vaccine.

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Laura Burns was thrilled when she got her second dose of the COVID-19 vaccine three months ago. The 71-year-old thought that with vaccination, she might finally be closer to being able to see her family in Europe again.

"I have not seen them now for two years, and that's including my stepdaughter. It's very, very ... that's hard," says Burns, who lives in Austin, Texas.

Lots of people have questions about getting vaccinated against COVID-19. That includes the millions of Americans with weakened immune systems that put them at higher risk of severe disease if they do get infected with the coronavirus.

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