Rutgers
University researchers have discovered that séxual árousal numbs the
female nervous system to such an extent that she doesn’t feel as much
pain—only pleasure.
Orgásm
affects up to 30 different parts of the brain including those
responsible for emotion, touch, joy, satisfaction and memory, found
researchers.
The
researchers asked eight women to stimu late themselves while lying
under a blanket inside a Magnetic Resonance Imaging (MRI) scanner, a
tunnel-like machine often used to detect brain tumours.
Most women took less than five minutes to reach an orgásm although some took as long as 20.
During
that time, the MRI scanner took images of their brain every two seconds
to show which parts became active during the orgásm.
The
scientists found that two minutes before the orgásm, the brain’s reward
centres become active, the areas usually activated when eating food and
drink.
Immediately
before they reached the peak, other areas of the brain became affected
such as the sensory cortex, which receives ‘touch’ messages from parts
of the body and the thalamus, which relays signals to other parts of the
body.
Once the orgásm has started other parts of the brain are activated such as those responsible for emotion.
The
final part of the brain to be activated is the hypothalamus, the
‘control’ part of the brain, which regulates temperature, hunger, thirst
and tiredness.
At
the same time another area responsible for pleasure is activated - the
nucleus accumbens - as well as the caudate nucleus, which is responsible
for memory.
“In
women, orgásm produces a very extensive response across the brain and
body,” the Daily Mail quoted Barry Komisaruk of Rutgers University as
saying.
“Some women raised their hands several times each session, often just a few seconds apart.
“So the evidence is that women tend to have longer orgásms and can experience several in rapid succession,” said Komisaruk.
A woman’s orgasm last an average of 10-15 seconds, whilst a man’s is thought to last for just six seconds.
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