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Displaying 321 - 340 of 698 articles

Successful vaccination against measles in childhood should provide lifetime protection. Paul Hennessy/NurPhoto via Getty Images

Explainer: a history of the measles virus and why it’s so tenacious

Measles infection can be easily managed with prompt health care and symptom management. But without care, mild symptoms can turn into life threatening secondary infections or long-term effects.
U.S. special operations troops are a crucial element of the fight against terrorism. AP Photo/Wally Santana

In the terrorism fight, Trump has continued a key Obama policy

Sending specially trained operatives into hostile territories dates back to Colonial days. In the past decade, special operations forces have become central to America’s counterterrorism efforts.
Vitamin D is sometimes called the sunshine vitamin. FotoHelin/Shutterstock.com

Why you need more Vitamin D in the winter

Vitamin D is essential for good health and particularly for fighting infections and keeping the microbes in the human gut healthy. But in winter it can be difficult to get enough.
Humans are barraged by digital media 24/7. Is it a problem? Bruce Rolff/Shutterstock.com

Screen time: Conclusions about the effects of digital media are often incomplete, irrelevant or wrong

Most of us spend hours each day glued to some type of screen for work or play. But is that a bad thing? Has anyone got the data to figure it out? Now is the time for ‘The Human Screenome Project.’
Bill Clinton’s 1993 health care plan called for universal coverage. It was dead by 1994, but the political wrangling it started over health care lives on. J. Scott Applewhite/AP Photo

Universal coverage, single-payer, ‘Medicare for All’: What does it all mean for you?

The US has been trying to reform its complicated health care system since 1993. In 2020, it continues to be one of the biggest and most complicated issues of the presidential campaign.
Open enrollment for health care in the ACA marketplaces ended at 3 a.m., Dec. 18, 2019, the same day a panel ruled that the individual mandate is unconstitutional. Centers for Medicare and Medicaid Services/AP Photo

How undoing ‘Obamacare’ would harm more than the health of Americans

Obamacare has been under siege since its passage in 2010. A ruling by a three-judge panel on Dec. 18 further chopped at the law by saying a key provision is unconstitutional.
In 2015, NASA’s New Horizons spacecraft looked back toward the sun and captured this near-sunset view of the rugged, icy mountains and flat ice plains extending to Pluto’s horizon. NASA/JHUAPL/SwRI

Planetary confusion – why astronomers keep changing what it means to be a planet

Many people are still upset that Pluto was demoted from being a planet. But definitions of various celestial objects are fairly fluid. So whether it is an asteroid or moon or planet is up for debate.
Amanda Gershon testifies at a public hearing on Medicaid expansion in Lincoln, Nebraska, Oct. 16, 2018. Gershon had $60,000 worth of medical debt at age 22 because of an autoimmune illness. Nati Harnik/AP Photo

Americans bankrupted by health care costs: 4 questions answered

Just how big a problem are medical bankruptcies? For someone going through one, it’s devastating. And it happens far more often than you might think.

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