A person’s Facebook activity might be a window into their health

Researchers stop short of saying that using the social networking website will either hasten or delay illness or death, but they conclude that how a person interacts on the site might say a lot about their level of risk.

"We can’t say using Facebook is good for you, but I think the study provides evidence that it’s probably not bad for you," said James Fowler, the study's senior author, from the University of California, San Diego.

Past studies have found that people with more friends and social ties in their community tend to live longer, Fowler and . . .