EDGE Providence

A new study finds that women taking 1,000 milligrams of calcium a day have a lower risk of dying, contradicting previous studied linking calcium to an increased risk of heart attacks. Dr. Holly Phillips explains.

Gay men in Canada can now donate blood, but there’s a catch: You must not have had sex with another man in the last five years. The Canadian Blood Services have approved the measure, and are hoping to implement it as soon as mid-summer.

CBS News contributor Dr. David Agus, director of the Westside Cancer Center at the University of Southern California, talks to the "CBS This Morning" co-hosts about why the cost for a genetic test for breast cancer is so high.

16-year-old Jack Andraka unleashed his hyper-drive intellect on preventing more cancer deaths. And as Jim Axelrod reports, the teen created a much faster and far cheaper detection method for pancreatic, ovarian and lung cancer.

According to a study by Initial Washroom Hygiene, handbags have up to ten times the level of microbiological activity on them than an average toilet seat. Willem Marx reports from London.