Why your baby doesn't want you to have sex

I head this on NPR one day and decided to look up the information and share it on my blog. I've said this to parents before. Discovery Digital Network "Test Tube" posted the following video explaining the studies that have been done around this information. I find evolution to be infinitely interesting. Reason #1 why Postpartum support and overnight care for newborns will never be obsolete (in our lifetime, anyway!)