The Food and Drug Administration on Friday proposed new limits for inorganic arsenic in infant rice cereal, an effort to reduce the leading source of arsenic exposure for babies.

The researchers said they believed the study was the first involving humans that examined the associations between nightly fasting and cancer outcomes.

A new, congressionally mandated report by the Institute of Medicine spells out, sometimes in unnerving detail, the challenges confronting researchers in understanding the disease and patients in getting good care