Falling asleep straight after sex proves you are in love

If your blood boils as your other half passes out immediately following sex, calm down - it's because they love you. Nodding off is a sign of affection, not indifference, say psychologists. Contrary to popular belief, it is not always the man who dozes off first in a heterosexual relationship. And women are more likely to go to sleep first if there has been no sex.
"The more one's partner was likely to fall asleep after sex, the stronger the desire for bonding," said study leader Daniel Kruger of the University of Michigan.
"Perhaps men stay awake longer as an artefact of mate guarding - making sure the woman doesn't leave them for another partner," said co-author Susan Hughes of Albright College in Reading, Pennsylvania. "Men may also stay awake longer in an attempt to entice their partner into having sex. Reproductive strategies don't end with intercourse; they may influence specific behaviours directly following sex. Falling asleep before one's partner may be a non-conscious way to foreclose on any commitment conversation after sex," she said.