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Blood flow directly affects the ability to get and maintain an erection. Learn about blood flow within the body and how it relates to the smooth muscle of the When couples talk about having "chemistry" together, who knew it was such an accurate description?
The brain sends signals to NANC cells in the artery. The NANC cells release nitric oxide (NO). Nitric oxide acts as a signaling molecule and stimulates an enzyme called guanylate cyclase in nearby cells. The guanylate cyclase converts a chemical called GTP into another chemical called cGMP. cGMP causes muscles in the walls of the arteries to relax. This relaxation increases blood flow. Meanwhile, PDE is decomposing the cGMP and turning it back into GTP. There is a cycle -- guanylate cyclase turns GTP into cGMP, and PDE turns cGMP into GTP. Nitric oxide turns the cycle on.
cGMP is produced as long as the brain is sending messages down the nerve fibers in the artery, which generate nitric oxide and keep the cycle going. When the brain stops sending the signal, all of the cGMP goes away because PDE is deactivating it. This way, the brain can turn valves on and off whenever it wants to.

So how does this relate to an erection?
When the brain gets aroused, it sends a signal to the penis. Nerve cells in the penis' corpora cavernosa start producing nitric oxide, which leads to the creation of cGMP. The cGMP causes arteries in the corpora cavernosa to dilate, causing lots of blood to flow into the penis. The extra blood flowing in causes the penis to inflate like a balloon. An erection occurs.When a man has erectile dysfunction, there can be many reasons for the problem. But one of the most common reasons, especially in older men, is that the arteries in the penis aren't dilating enough when the brain sends the signal. The man is aroused and the nerves in the penis are producing nitric oxide, but the amount of cGMP produced isn't enough to maintain an erection.

The way that Viagra goes about solving this problem is quite ingenious.

PREMATURE EJACULATION

Premature ejaculation is defined as persistent or recurrent ejaculation with minimal sexual stimulation, before, on, or shortly after penetration.

Although the problem of premature ejaculation is not new, the number of patients reporting with the problem has certainly increased remarkably over the past two to three decades. This can be attributed to various reasons of which the most important one is public awareness. Previously the condition was not considered a problem by many at all primarily due to lack of knowledge but in recent years due to advancement in media and easy accessibility to information especially through internet, many have discovered the existence of the problem and seek cure.

It has also been observed that the problem is becoming more common amongst the younger generation and expert believe that one of the major culprits is pornography. The problem starts when one becomes addicted to pornography. When pornography becomes an addiction, it harms you in two manners i.e. psychologically and physiologically.

Most of the explicit material shown is not real and unnatural. Many young minds start idealizing these scenes and begin considering them as normal. Soon the stage comes when they start comparing their own bodies and abilities with these unreal graphics and ultimately begin to develop complexes and confusions in their sub-conscious. This state soon manifests physically in the form of sexual problems like erectile dysfunction and premature ejaculation

Moreover, when a person becomes addicted to pornography, the cells in his brain that produce sex chemicals such as serotonin increase in number and functionality. These chemicals are responsible for different stages of sexual cycle. In a pornography addict, even the slightest of sexual stimulation such as touching causes sudden and increased production of these chemicals resulting in early conclusion of the sexual cycle hence premature ejaculation.

Although masturbation itself is not harmful, it definitely becomes detrimental if done while watching porn. This alters the brain-genitalia signaling resulting in inability to ejaculation for long thus worsening the condition of PE.

Since this problem occurs due to both psychological and physiological reasons, it needs correction of both psychological and physiological imbalances.

The first step in curing PE, especially if it has developed due to pornography is complete abstinence from it. Just like other addictions, abstinence from pornography will result in anxiety states but with strong commitment and will, this can be done.

The problem of PE in an individual usually arises because he unwillingly alters the brain-genitalia signaling by frequent masturbation especially to porn. This happens especially in those individuals whose only aim is to reach orgasm as early as possible to relieve mental and physical tension. Slowly and gradually this behavior makes the brain used to producing the sexual chemicals quickly and in increases amount so that the orgasm could be reached early. This soon turns into the problem of PE. Therefore, the treatment of PE doesn't lie in medicines, in fact the only way to cure this problem is to retrain the brain to not to rush through the sexual response cycle and reach orgasm early.

Experts have proposed different methods to achieve this goal such as Controlled Masturbation, Physically blocking ejaculation and the start-stop method with a partner.

Controlled Masturbation

This is a very effective way of overcoming PE without the help of a partner. You have to be patient and slowly and gradually retrain your body against early ejaculation.

In this method, you have to masturbate at least 3 times a week and not more than 6 times, in a relaxed environment, not when you are physically or mentally tired, anxious, worried about something. You have to free your mind of all the worries before you start the practice. Give yourself at least half an hour for the practice.

When you are totally relaxed, start stimulating yourself while lying down. Don’t try to indulge your mind into thinking about something else as the idea is that during the initial few times you become aware of all the sensations that arise from your genitalia as you stimulate yourself and as you reach orgasm.

Be gentle and don’t rush while stimulating yourself. Do not fear early ejaculation. Just relax and try to identify all sorts of sensations that arise from the genitalia. Most of the patients start tensing their body muscles and start taking shallow breaths as they approach ejaculation in order to delay it. This on the contrary makes things worse, pushes more blood to the genitals which in turn results in early ejaculation. Try to keep taking normal breaths and keep all your body muscles relaxed. Whenever you feel that any of your body muscle is getting tensed, concentrate on that part and try to ease the tension. Moreover, continue varying the pace of stimulation (never too fast). Your goal is to identify the point after which you cannot avoid ejaculation (the point-of-no-return) and stop stimulation before that point. Wait till you lose half of your erection and then start another cycle. In some individuals, this point will be reached very early, as soon as after 20 to 30 seconds of stimulation.

These individuals should not worry and continue practicing. In each session, they should try to avoid ejaculation at least 6 times by stopping before the point-of-no-return after which they can ejaculate. In case ejaculation occurs before 6 cycles, the practice should not be repeated again on the same day. As the days go on, the individual will realize that his time period between starting of stimulation and reaching the point-of-no-return has gradually increased. The results will not come in a day or 2. Retraining the brain can take weeks before the desired result is achieved. Soon, the individual will be able to assign time targets to himself as he practices controlled masturbation. Experts suggest that the final target should be 60 minutes with 6 stimulation cycles without ejaculation.

I some individuals identifying the point after which ejaculation becomes inevitable is very difficult. This individuals can rely on certain signs which suggest that ejaculation is near. Firstly, the body starts becoming tense and breathing rate starts to rise up. At this point the person should concentrate on relaxing the body and should slow down or if necessary stop the process of stimulation. Secondly, the scrotum contracts, bringing the testicles closer to the body. At this point, pulling the scrotum away from body can help in delaying ejaculation. And finally, a lot of pre-cum starts to come out. At this point, the person who has difficulty in recognizing the point-of-no-return should stop stimulation.

A muscle called the PC muscle lying in our pelvic area helps a lot in this regard. This muscle wraps around the inner urethra (the tube which carry urine and sperm out) and can block it if made tense. This muscle can be strengthened with practice. You can identify this muscle by trying to suddenly hold the flowing stream of urine when you are urinating. The muscle which blocks the urethra and stops the flow of urine is the PC muscle. Once identified, you can tense this muscle even when you are not urinating. Tensing the muscle for 3 seconds and then relaxing it for 3 seconds and then repeating the process for 10 times is called the Kegel’s Exercise. This is a very easy and effective exercise which can be done anytime, at least thrice daily. This really makes the PC muscle strong which in turn can help in blocking ejaculation when the person reaches the point-of-no-return.

Start-Stop Method

1. The female partner should slowly begin stimulation of the male and should stop as soon as he senses a feeling of excessive excitement that may lead to ejaculatory inevitability.
2. Then, she should administer a firm compression of the penis just behind the Glans, pressing mainly under the penis. This should be uncomfortable but not painful. (To view a picture of how to hold the penis.
3. Stimulation then should begin again after the male has a feeling that the ejaculation is no longer imminent.
4. The process should be repeated and practiced at least 10 or more times. You can lubricate the penis with KY jelly so that it mimics the vaginal environment.
   (Gradually, most males find this technique helps decrease the impending inevitable need to ejaculate.)
5. After a period of practicing this method, the couple can sit facing each other, with the woman’s legs crossing on top of the male’s legs. She can stimulate him by manipulating his penis close to, then with friction against, her vulva area. Each time he senses excessive excitement, she can apply the squeeze and stop all stimulation until he calms down enough for the process to be repeated. The cycle should ideally be repeated 6 times

Finally, intercourse may be attempted, with the female partner in the superior position so that she may withdraw immediately and again apply a squeeze to remove his urge to climax.

Physically Blocking Ejaculation

In some individuals the problem of PE is not very severe. These individuals can delay their ejaculation by physically blocking the inner urethra when they think they are about to ejaculate. The easiest place to locate the inner urethra is between the scrotum and the anus. Putting firm pressure with fingers in this area can effectively block ejaculation and thus can prolong the event.