April 24, 2014

Breaking News:

Keyshawn Johnson Arrested -

Monday, April 21, 2014

Chris Brown’s Bodyguard Found Guilty -

Monday, April 21, 2014

Knicks Fire Mike Woodson -

Monday, April 21, 2014

Earthquake Shakes Mexico City -

Friday, April 18, 2014

Suspicious Packages Found At Boston Marathon -

Wednesday, April 16, 2014

200 Hundred Dead Or Injured In Bus Station Bombing -

Monday, April 14, 2014

Aldon Smith Arrested At LAX -

Sunday, April 13, 2014

Three Dead In Jewish Community Center Shooting -

Sunday, April 13, 2014

Stephen Colbert Named New Host Of The Late Show -

Thursday, April 10, 2014

UMass Guard Becomes First Openly Gay Player In D-1 Basketball -

Wednesday, April 9, 2014

Six Injured In High School Stabbings -

Wednesday, April 9, 2014

Active Shooter Reported At Portsmouth Naval Hospital -

Tuesday, April 8, 2014

Judge Rejects Request To Dismiss Chris Brown Case -

Monday, April 7, 2014

U.S. Pinger Locator Detects Signal -

Monday, April 7, 2014

Ship Detects Pulse Signal In Search Of Missing Plane -

Saturday, April 5, 2014

7.8 Aftershock Shakes Chile -

Thursday, April 3, 2014

Shooting Reported At Fort Hood -

Wednesday, April 2, 2014

5.8 Earthquake Strikes Off Coast Of Panama -

Wednesday, April 2, 2014

Tiger Woods Withdraws From The Masters -

Tuesday, April 1, 2014

North Korea, South Korea Exchange Fire Near Border -

Monday, March 31, 2014









Scientist Explains Why Men Sleep After Sex

( 4UMF NEWS ) Scientist Explains Why Men Sleep After Sex:

For men who roll over and nod off rather than engage in pillow talk, it’s the perfect excuse.
They really do need to sleep after sex because the male brain is designed to switch off at that point, scientists claim.

They scanned men’s brains before and during orgasm, and found that the cerebral cortex – or ‘thinking’ area – shuts down. Straight afterwards, two other areas, the cingulate cortex and amygdala, tell the rest of the brain to deactivate from sexual desire.

This is accompanied by a surge of chemicals such as oxytocin and serotonin, which can have a powerful sleep-inducing effect, according to the researchers.

Neuroscientist Serge Stoleru, who leads a group at the French medical research council Inserm, said: ‘These experiments give us the first hints as to what happens in the brain during orgasm. 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.’

One of the chemicals they release is prolactin, which is linked to the feeling of sexual satisfaction. Previous research has found men who are deficient in prolactin are less tired afterwards.

Dr Stoleru, whose research is published in the journal Neuroscience and Biobehavioral Reviews, said: ‘The human brain is involved in all the successive steps of sexual behaviour.’

It may be a relief to some women to know there is a biological explanation for the roll-over-and-sleep effect.

The study also showed that the brain switched off almost all sexual desire after orgasm. And as well as this, men have a further reason for feeling drowsy: their brains become flooded with sleep-inducing chemicals such as serotonin after they have had sex.

Source