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ERECTION REFLEX

When the spinal cord is intact, the sex centre in the brain controls the spinal erection reflex. If the messages coming into the brain sex centre are erotic, from memories or fantasy or thoughts, the erection reflex works more easily and rapidly, in other words, it is “acilitated. But if the messages received by the sex centre from other parts of the brain are disturbing, because of old unhappy memories, depression, anxieties, or hang-ups about sex, or because of anxieties about other matters, or because of hostility to one’s partner, the erection reflex is damped down, or inhibited. This inhibition may be so strong that the erection fails to occur, or if it occurs it may be only transitory.

With increasing age, the facilitating messages from the brain become reduced, and perhaps the reflex from the stroked penis is less easily started, so that older men often take longer to get an erection. But even very old men can get an erection if the penis is stimulated for long enough.

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Posted in Men's Health-Erectile Dysfunction
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