Hmmm... I was able to click on it and it worked (maybe because I am in Canada?). Here is another link (http://m.theglobeandmail.com/life/parenting/infant/infant-development/dont-pity-moms-of-twins-they-may-outlive-you/article2020059/?service=mobile) and the headline and opening sentences:
Don't pity moms of twins – they may outlive you
TRALEE PEARCE
Globe and Mail Update
Published Thursday, May. 12, 2011 3:28PM EDT
Last updated Thursday, May. 12, 2011 3:56PM EDT
If you’ve ever felt sympathy for a mother of twin infants because it looks like double the trouble, a new study offers a refreshing conversation starter: Mothers of twins appear to live longer than mothers of singletons.
The finding flies in the face of previous research that says having more children reduces a woman’s life span.
But it’s not the twinning itself that leads to a longer life, says University of Utah researcher Ken R. Smith: It’s that the act of having twins appears to “reveal something we wouldn’t otherwise see,” perhaps a trait of robustness.
Prof. Smith, who teaches family and consumer studies and is director of the Utah Population Database at the university, says he and his colleagues are primarily concerned with longevity and disease prevention. They look at fertility very closely, because biologically fertility is not only about giving birth, but also about ensuring one’s offspring reach their own reproductive maturity.
“We started the project because we’re very interested in what makes people live a long time,” Prof. Smith said. “Why does someone make it to 100 or die at 60?”
With about 7 to 8 per cent of mothers giving birth to twins, he wondered what effect the seemingly burdensome experience would have on them. He and his colleagues used the massive Utah Population Database, one of the world’s largest computerized genealogies, which collates the records of more than 1.5 million people in the state from the early 1800s to the mid-1970s.
They narrowed it down to a sample of about 60,000 women born before 1899, and compared mothers of twins with mothers of singleton babies on a number of fronts, including mortality rates after age 50.
Mothers of twins died at a rate of 7.5 per cent less each year compared with the other moms. The effects were strongest in women born before 1870. The study calls this a “natural fertility era,” before the use of emerging family-planning methods.
Not only did the moms of twins live longer past menopause, they also had more children in total, shorter gaps between births, more years of reproduction and were older when they gave birth for the last time.