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Some of tequila's oldest traditions are fast being erased as international spirit conglomerates take over family businesses. And tequila makers are worried about their impact on the environment.

There's evidence that many standard treatments for back pain — including surgery, spinal injections and painkillers — are often ineffective and can even worsen and prolong the problem.

Biologists armed with truck-mounted spotlights, flea spray, and anti-plague vaccine roam the South Dakota grasslands each night, five months a year, as part of a 30-year rescue mission.

I'm fasting intermittently as part of a research study, to see if changing my gut microbiome affects my multiple sclerosis. But maybe living on Peanut Chews isn't the best strategy.

As more research suggests some degree of dietary cholesterol is harmless, if not healthy, the egg's reputation is slowly returning. Yet some experts worry the science is being misinterpreted and spun.

There's a growing effort to actually test whether aid programs work. But how much has it accomplished?

Deputy Attorney General Rod Rosenstein has appointed Robert Mueller to oversee the growing probe into Russian meddling in the 2016 election and possible ties to Trump associates.

There's a lot more going on in the shadowy world of America's spies than just the controversy over the abrupt dismissal of James Comey as director of the FBI.

Democrat Martin O'Malley and Republicans Rand Paul, Carly Fiorina and Ben Carson talk with David Greene about criticism and expectations heading into caucuses for the 2016 presidential race.

A leading Harvard professor says American education research gets an F. For too long, he says, excellent research hasn't been translated into meaningful change.