HMS associate professor of pathology David Sinclair is getting under the hood of the molecular machinery that drives longevity, and HMS assistant professor of medicine Anne Fabiny is preparing students for an aging population. In addition, an HMS lab discovers a new cell death process with links to cancer.

HMS professor of medical sociology Nicholas Christakis examines how social networks affect our health, and an HMS student relies on social networking websites to rally the Kenyan diaspora. Plus, an HMS lab makes a startling discovery with implications for an emerging field called personalized medicine.