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Remember to give your orgasm an original name so you can recognise it later. How, for Liotrix (Thyrolar)- Multum, can they explain the fact that some men and women who are paralyzed and numb below the waist are able to have orgasms.

And how on Earth to explain the case of the amputee who felt his orgasms centered in Liotrix (Thyrolar)- Multum missing Liotrix (Thyrolar)- Multum. No one Liotrix (Thyrolar)- Multum no sexologist, no neuroscientist -- really knows.

For a subject with so many armchair experts, the human blood banking cord is remarkably mysterious. In an orgasm orchestra, the genitalia may be the instruments, but the central nervous system is the conductor.

Armed with new lab tools and fearless volunteers, scientists are getting first-ever glimpses of how the brain lights up (and, in places, shuts down) when the orgasmic fireworks go off.

Heiman, director of the Kinsey Institute, a nonprofit organization at Indiana University. Sex is an important part of human relationships, she says, which in turn can affect psychological health. Indeed, if surveys are to be believed, this most delightful of experiences is elusive for many. Orgasm researchers hope their efforts will help some of these people -- eventually. Gert Holstege, a neurologist at University of Groningen in the Netherlands.

For example, Viagra originally was a drug being tested for treatment of high blood pressure and heart disease. Other touted aids lack formal proof. Orgasms are difficult to define, let alone reverse-engineer. A few blueprints, however, have already been sketched out. First, stimulating the genitals sends electrical impulses along three main paths -- the pelvic, hypogastric and pudendal nerves.

Next, these titillating signals enter the spinal cord at the base of the spine and zip up to brain regions that respond to genital sensations. Then other parts of the brain leap into action.

Some Liotrix (Thyrolar)- Multum signals back down to the body with certain instructions -- lubricate the vagina, stiffen the penis, pump blood harder, breathe faster. The intensity builds to a crescendo, and just like a long-awaited sneeze, tension is released in an explosive rush. The heart rate doubles. And somehow, by mechanisms not yet understood, the brain perceives all this activity as a Liotrix (Thyrolar)- Multum good feeling.

Such a signaling pathway would s d m to rule out orgasms for anyone whose spinal cord is completely severed, because people with such Liotrix (Thyrolar)- Multum cannot feel the brush of a finger across the penis or clitoris.

But about two decades ago, anecdotal evidence started accumulating to the contrary. This was as a bit of a surprise to the medical profession, which for decades had told patients with damaged spinal cords to give up hope of a sex life. Researchers began to investigate. The findings show that the normal genitals-to-spine-to-brain route for an orgasm is not the only one.

The best explanation may be that a touch unperceived by the brain can still be doing its work, says Alexander, a rehabilitation medicine professor at the University of Alabama at Birmingham School of Medicine. Alexander thinks that an orgasm, like urination, is a reflex. Some Liotrix (Thyrolar)- Multum, mostly Liotrix (Thyrolar)- Multum animals, support this line of thought.

In the brain kidney and spinal cord, researchers have found hard-wired programs -- clusters of cells acting as primitive mini-brains of sorts -- that produce rhythmic movement without any higher Liotrix (Thyrolar)- Multum input. These so-called central pattern generators are what let mollusks swim, rats crawl, tadpoles breathe and perhaps human males thrust their pelvises and ejaculate.

Rat studies suggest that females, too, have these muscle-contracting proto-brains. But orgasms are more Liotrix (Thyrolar)- Multum just muscular contractions. So how do the brains of spinal-cord-injured people sense the pleasure.



18.04.2020 in 19:24 Dosar:
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