New York Times article on longevity does a good job of discussing how social connection and slow-paced lifestyles may trump but also enable healthy diet and activity.
Communities Learn the Good Life Can Be a Killer - Nice example of how a behavior (i.e., living in suburbs) that is a positive adaptation to one environment (i.e., infectious disease and crowding are main threats) can be negative in a new environment (i.e., low infectious disease rates but less physical activity built into daily life)
The simplistic energy in/energy out model of weight gain fails to acknowledge that dynamic neuropsychological and physiological processes influence weight status. This newspaper article summarizes physiological dynamics that make weight loss more difficult than "eat less, move more.
This article on effects of sugar intake is a great introduction to epidemiologic research. I am not necessarily endorsing the author's position, but his description of the challenges of epidemiologic research is both accessible and comprehensive -- what every lay person should know about epidemiology.
Growing interest in more nuanced measures of productivity and impact than counting publications. One example: Google Scholar's new citation tracker and H-index