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How can high blood sugar levels affect erections?

Mark Moyad
Urology
High levels of insulin from overly high blood sugar actually create changes in parts of the sympathetic nervous system that send signals, making it difficult to get an erection, and we need some input from the other part of the nervous system (parasympathetic) to achieve an adequate erection. In other words, high levels of insulin like to turn the lights in the room on even when you hit the “lights off” switch. Also, high insulin levels cause blood vessels to constrict and reduce blood flow to the penis.
Dr. Moyad's Guide to Male Sexual Health: What Works and What's Worthless

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Dr. Moyad's Guide to Male Sexual Health: What Works and What's Worthless

There is perhaps no medical topic that is discussed less than male sexual health. True that it is the basis of countless tasteless jokes, but seldom is the subject approached in a frank and...

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.