Strategies to fix America's ailing health-care system seemed to fly off the presses every month in 2007. Doctors, journalists, and policymakers clamored to have their say, as did supporters and opponents of the controversial life-extension movement. These top trends, which registered in 2006 as well, and will only balloon in this election year,…

It is not surprising that the expanding American waistline is correlating to a growing need for health information. According to the Centers for Disease Control and Prevention, obesity contributes to an increased risk for hypertension, diabetes, heart disease, arthritis, and some cancers. And though general medical books that list 100 different…