What were the principal causes of death in the past? Could your ancestor have been affected? How was disease investigated and treated, and what did our ancestor

The dean of Columbia University's medical school explains why our bodies are out of sync with today's environment and how we can correct this to save our health

Death is something we all confront—it touches our families, our homes, our hearts. And yet we have grown used to denying its existence, treating it as an enem

In this companion to a new PBS series beginning in April, "In Search of Our Ancestors" features over 100 true stories of the amazing luck, unexpected kindnesses