The Physiology of Your Erections

In this article we are going to look at the physiology of erections and ejaculation – not so much because of how interesting it is, but because it’s an important element of understanding how to perform better and last longer in bed.

Ultimately the cause of most men’s premature ejaculation (PE) is that they have a over-responsive nervous system. Now your nervous system can be divided into two parts:

  1. your central nervous system and
  2. your peripheral nervous system.

Now this isn’t a medical classroom, so I’m just going to focus on what matters here, but it’s important that you have this basic framework of knowledge, so bare with me for a couple of more minutes.

Physiology of Erections

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Your peripheral nervous system consists of two parts as well:

  1. the somatic nervous system and
  2. the autonomic nervous system.

And now there’s one more “layer of knowledge”: the autonomic nervous system is divided into the

  • parasympathetic nervous system and the
  • sympathetic nervous system.

And these two are what really matter when it comes to having sex, male stamina and PE.

Because it’s the interplay between your parasympathetic nervous system and your sympathetic nervous system that’s managing your arousal, your erection and your ejaculation.

Before we go on, try to remember this:

Your sympathetic nervous system USES energy.

Your parasympathetic nervous system CONVERSES energy.

You probably heard about the fight or flight response. This is the biological mechanism which is crucial to your survival, and it can override pretty much every other function in your brain.

So if your brain perceives something as a potential threat, the first thing it does is to go into defense mode and decide whether you should:

  • escape
  • or attack.

And it mobilizes all your energy and body systems to do that by basically switching everything else off, shutting all other systems down. That’s why it’s so hard to be reasonable or think straight when you are really, really upset about something.

Interestingly, your sympathetic and parasympathetic nervous system also respond to not just threats, but also positive excitement.

Now remember what you just learned about your sympathetic and your parasympathetic nervous system?

Your sympathetic nervous system is what gets you up and running, or fighting, it uses energy. And I like to think of it as soldier on a battlefield. Completely on alert, highly wired. I imagine a soldier drinking coffee when I think of the sympathetic nervous system.

The parasympathetic nervous system is all about relaxation. I imagine a stoner, laying in a hammock and saying: “Hey, chill man… take it easy.”

Now at the same time, the sympathetic nervous system (the soldier) is what triggers your ejaculation. The parasympathetic nervous system (the stoner) is what gives you a boner (it does so by relaxing the arteries in your pelvic area, which is a prerequisite for an erection).

Now what is so special about the interplay between your sympathetic and parasympathetic nervous system when you have sex is that they operate together.

Usually the two of them work like an either/or switch. It’s either the one or the other. But when you have sex, that’s the rare exception; that’s when both systems are operating simultaneously.

As we said, it all starts with the parasympathetic nervous system (the stoner) by relaxing some of the blood vessels down there to give you an erection. And then the more you get worked up, the more excited you get, the more the sympathetic nervous system (the soldier) takes over.

It just heats up more until you reach the point of no return. That’s when your brain sends signals to your sympathetic nervous system (the soldier) and orders it to get ready to ejaculate.

Now you’ve gone through all of this, and maybe you have this question on your mind…

So what?!

How’s all that going to help you last longer?

Well, think about it.

If you want to maintain an erection, which of the two nervous systems should be the dominant one while you’re having sex? The sympathetic (soldier) or parasympathetic (stoner)?

Yes, the “stoner” system. Because that’s when your blood vessels are relaxed and your penis is hard.

But how do you control that?

How can you make sure you keep the parasympathetic nervous system in charge when having sex?

Well, that’s what my How To Last Longer in Bed is all about.

{ 2 comments… add one }
  • Dave Lewis May 9, 2013, 11:34 am

    That was really insightful. Thanks for the explanation, I learned a couple of new things here about something I thought I already knew all there is to know about 😉

    • Timothy Turner May 11, 2013, 3:58 am

      @Dave: Thanks for your comment, glad you found it insightful 🙂


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