Health is correlated with quality of life. If you get regular physical activity, have social connections, control your cholesterol, keep your blood pressure at a normal level, don't smoke - these things can make an enormous difference not only in how long you live, but how much you enjoy your life in those years.

Health is correlated with quality of life. If you get regular physical activity, have social connections, control your cholesterol, keep your blood pressure at a normal level, don't smoke - these things can make an enormous difference not only in how long you live, but how much you enjoy your life in those years.

Vaccines and antibiotics have made many infectious diseases a thing of the past; we've come to expect that public health and modern science can conquer all microbes. But nature is a formidable adversary.

The way we work in public health is, we make the best recommendations and decisions based on the best available data.