The LPRD:
At this point, fathers-to-be might be interested to know that relaxin is ten times more effective when administered orally.


The context:
Other hormones play a vital role, too. One substance called relaxin, released in semen, helps to soften the cervix and lengthen the pelvic ligaments, allowing for easier passage of the baby. At this point, fathers-to-be might be interested to know that relaxin is ten times more effective when administered orally.

The full article:
[link|http://www.timesonline.co.uk/article/0,,8123-2238733,00.html|http://www.timesonli...3-2238733,00.html]