Results from another Women's Health Initiative (WHI) study showed a modest decrease in breast cancer risk in women who used calcium when compared with women who didn't use calcium.

CNN: Falling breast cancer rates: What's behind the numbers?

But the researchers conceded that their sample size, 302 volunteers, may have been too small to detect modest differences and concluded that more study was needed.

CNN: ASIANOW - TIME Asia

The study found that executives are modest users of social media, with approximately 60 percent using it one hour or less per week.

FORBES: LinkedIn Is Preferred By Executives