How poverty might change the brain

Martha Farah is leaning forward, furiously typing on her thin laptop in her spacious office at the University of Pennsylvania. Awards, paintings and posters lean against the walls on the floor as she puts the final touches on a grant proposal.

The 5 foods to avoid if you want a six pack

Carrying a spare tire around your belly? You're not alone: Fifty-four percent of  adults now have abdominal obesity, up from 46 percent in 2000, according to a recent report in the Journal of the American Medical Association.