All new parents know that moment when they FINALLY get a few minutes alone, in bed, when they're both not too exhausted to have sex again . . . and the baby starts crying.
Well, a new study out of Harvard has found out WHY: It turns out your baby's doing it on PURPOSE . . . to BLOCK you.
Babies are wired to try to monopolize their mother's attention . . . and they can somehow sense that your private time might lead to you making ANOTHER baby. So they interfere by CRYING.
The researchers say, quote, "Maternal fatigue can be seen as an integral part of an infant's strategy to extend the inter-birth interval" . . . that's the time between when you have a baby and when you have your NEXT baby.