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PHILADELPHIA — “Knowledge is power” is an old saying. Another cliché warns, “a little knowledge is a dangerous thing.” When it comes to getting inoculated…

A federal calculator that companies use to certify whether their health insurance complies with the Affordable Care Act appears to bless plans without hospital coverage.

New websites ending in "health," "doctor" and "clinic" will soon start appearing online. But anyone can buy those names. Some public health researchers worry that they'll purvey bogus medical advice.

The share of Americans older than 25 who have never been married keeps getting larger. That cohort is growing much faster for black people, even as many say they want to marry one day.

If you have a problem with your heart or liver, the diagnosis is likely to be made by a lab test or medical image. But neurologist Allan Ropper says those tests often fail when it comes to the brain.

A wearable PET scanner and lasers that could control individual brain circuits are among the projects funded by a $46 million federal effort to accelerate research on the human brain.

Individuals who are currently receiving coverage but have failed to present the necessary documents verifying income and citizenship will be cut off.

New drugs and vaccines can take years to develop. But health officials and researchers are accelerating tests of experimental drugs to fight the outbreak in West Africa.

Researchers have found a gene that affects how strongly you experience bitter flavors. And those who aren't as sensitive eat about 200 more servings of vegetables per year.

It has been a year since Obamacare launched with a difficult start. Now, supporters are confident about the program's future. But critics say it's too early to gauge its success.