Pictured: the world’s biggest cock-block.
The nighttime breastfeeding routines not only kill the mood. They also cause extreme fatigue and even hormone changes in nursing mothers that delay ovulation.
Of course, the babies are doing it unintentionally, Haig says. But the ones who tended to scream late at night successfully delayed or prevented the arrival of a sibling, allowing fussy sleepers to dominate the gene pool.
Unintentionally? I’m not buying it. Those sneaky little bastards know exactly what they’re doing.