Fitness

Microbes living in the guts of fruit flies appear to influence the flies' food choice—and promote egg production, even under a nutrient-poor diet. Christopher Intagliata reports.

Lower back pain is the fifth-most common reason that drives people to the doctor's office. Learn the tips on how to prepare for your doctor's visit

Raw data from a 40-year-old study raises new questions about fats

The author of The Hungry Brain: Outsmarting the Instincts that Make us Overeat explains how we're betrayed by our very own brains, which lead us to crave and overeat foods that aren't good for us.

As car sales fall companies are looking to expand into the handicap assistance market

Sarin's lethality is well known, but the lingering effects on victims who don't succumb are less familiar

Two centuries after its discovery, it's still incurable—but research is accelerating, with major help from citizen scientists in the patient community

Michael J. Fox Foundation for Parkinson's Research CEO Todd Sherer, a neuroscientist, talks about the state of Parkinson's disease and research.

New guidance updates a 2012 recommendation

The controversial step will significantly expand direct-to-consumer testing—but what if the news is bad?

Researchers want to employ CRISPR to solve a huge health care problem

New findings provide the clearest picture yet of the risk to fetuses