Multiple brain structures involved in fear work in an interplay of swift reactions meant to preserve and protect life, usually from saber-tooth tigers, but today real or imagined threats.

Health Pros Gather in Boston to Explore How Culture and Structure May Stall Needed Health System Changes

Yesterday marked the 36th year that the world observed World No Tobacco Day. This relatively obscure milestone masks a stalled effort to curb consumption of combustible cigarettes and other nicotine-related products. It’s unlikely most people paid any attention. But the impact of smoking is all around us, even if we don’t see it. Statistics rarely tell a provocative story to compel people to action.

Zeitgeist is a word we don’t often use today, but it is as relevant today as it was when I attended graduate school. Yet, we...