Researchers from the French government took scans of men's brains during and after sex to monitor changes in their mental activity.
They found that the cerebral cortex, which governs conscious thought, switched off during orgasm.
Two other areas, the cingulate cortex and the amygdala, then sent a message to the rest of the brain telling it to remove all sexual desire, via the release of sleep-inducing chemicals including serotonin and opioids.
Serge Stoléru, one of the scientists who conducted the research, told the Sunday Times: "These experiments give us the first hints as to what happens in the brain during orgasm."
The findings may provide men with a helpful excuse to turn off the light and go to sleep, but they are unlikely to be welcomed by their partners who do not experience the same effect. Dr Stoléru explained: “After men have an orgasm they usually experience a refractory period when they cannot be aroused.
"For women it seems to be different. They don't seem to have such a strong refractory period and may be asking for more when their partners just want a rest."

http://www.telegraph.co.uk/news/health/news/9418493/Sex-really-does-make-men-fall-asleep.html


So ladies, dont blame us

ONLY

LAZY MEN SLEEP

AFTER...


I DONT OOOOO

hmmnnn, interesting...

Not all these findings are right jare. Me for example, I only sleep if we do it in the middle of the night and so do many people I know.

It is called a "power nap"! It occurs from time to time but is not a regular occurrence! It helps sha 2 recharge your ball batteries! And it affects babes too!

YES
THIS IS SO OLD SCHOOL.
I DO NOT SLEEP AFTER SEX.. ONLY WEAK MEN SLEEP LIKE THE MEN OF THE 60'S.

like all research, it is not 100 percent accurate. depends on sample used.

Yes! Very correct. If you have a problem with this, hug something.