Diagnosing physical ailments used to depend exclusively on symptoms and observations, but a prodigious surge in new technology has provided 21st century medicine with an array of precision diagnostic tools — from biomarkers to genetic testing — that have fueled astounding progress in defining and treating illness. Over the past More

The Wall Street Journal: Organic-food advocates, often seen as insufferably smug and even depicted that way in TV comedies like “Portlandia,” won’t find a new study reassuring. Sixty-two participants either looked at pictures of fruits and vegetables labeled as organic, comfort foods such as ice cream and brownies, or foods More