An update on our warning about products containing peanut butter: Five hundred people have now become ill after eating products containing peanut butter contaminated with salmonella–including more than 100 children under the age of five. And, it now turns out, the plant that produced the peanut butter knew it had a salmonella problem and went on selling the contaminated products anyway.

Music soothes the savage beast, they say. And there’s evidence it eases stress and may even promote healing. Surgeons often listen to recorded music while operating. Jorge Camara, MD, an eye surgeon at Hawaii Medical Center East, went a whole step further, installing a piano in the operating room–and playing it himself.