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Some students who remain unvaccinated are now in a second 21-day quarantine since the beginning of the school year.

More than 26 million U.S. women have the typically benign tumors, which can often cause debilitating symptoms and other health problems.

NBC News medical contributor Dr. Natalie Azar and TODAY health and nutrition expert Joy Bauer stop by Studio 1A to break down what you need to know about caffeine, including the benefits, daily recommendations, potential risks and more.

The impeachment push by Rep. Haley Stevens, D-Mich., is almost certain to be blocked in the GOP-controlled House.

Doctors in the San Francisco Bay Area have blamed the mushroom species for 23 poisoning cases since Nov. 18. One patient has died.

Millions could see their health care costs double or lose benefits when Obamacare tax credits expire at the end of the year. NBC News' Ryan Nobles details the latest in the fight over extending ACA premium tax credits.

No safety issues have been reported for either product, drugmakers say.

At 75 years old, Robert "Raven" Kraft has run every single day for the last 50 years and it all started with a New Year's resolution in 1975. Kraft's promise to himself has kept him going as well as a Florida community of runners he built along the . ...

TODAY fitness contributor Stephanie Mansour stops by Studio 1A to share strategies from the Start TODAY App's new 1-Week Holiday Helper Series including quick workouts, an easy energy-boosting snack, stress-relieving exercises and more!

Getting hurt during the holidays can ruin any celebration so clinical specialist in orthopedic physical therapy Karena Wu joins TODAY to share tips on how to prevent common aches and pains. Wu shares how to deal with icy surfaces, lift heavy objects, ...