Want to live longer? Go meet your neighbors. Recent research introduced by psychologists at the University of Michigan found that people who know and trust their neighbors are much less likely to have heart attacks. Like many studies, this one is more about correlation than causation, so it’s difficult to say for sure whether bonding with the neighbors is really worth the risk. As we learned last week, a lot of people couldn’t pick their neighbors out of a police lineup. (How many of us would be surprised to see them there?)

+ If interacting with other humans isn’t your thing, you could always exchange some pleasantries with hitchBot. The Canadian robot hitchhiked 4,000 miles “to explore the boundaries of human-technological interaction.”