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How It Works
Physiology of male stimulation & erection mechanism
In case of Stimulus and arousal there is a series of nerve impulse transmission from brain to various organs of the body. Many hormones play a vital role in sexual arousal. The male sexual response cycle involves excitement, plateau, orgasm, and resolution. Erection, in the sexual sense, is the hardening, enlarging and rising of the penis which often occurs in the sexually aroused male. Erection enables sexual intercourse and some other sexual activities, though it is not essential for all of them. In addition to sexual arousal, erection can be caused by friction, retraction of the foreskin, or by the pressure of the filled urinary bladder. In healthy males, erections occur several times per night during the REM phases of sleep, and morning erections when waking up are common. These are called an "unprovoked erection". It is normal for them to occur 2 to 3 times a week. This is a good sign the erection pathways are functioning well.

 
Mechanism
Physiologically, an erection is achieved by two mechanisms that play together:
Increased inflow of blood into the vessels of erectile tissue, and
Decreased outflow.
  • The brain sends the impulse to the penis, telling the penis to relax. This is caused by physical or mental stimulation.
  • Erection is a reflex response initiated by visual, olfactory, or imaginative stimuli impinging upon supra spinal centers or by genital stimulation that in turn activates spinal reflex mechanisms.
  • Sacral parasympathetic and thoracolumbar sympathetic nerves provide the efferent vasodilator input to the penis.
  • Parasympathetic nerves also stimulate secretion from the seminal vesicles and prostate and Cowper's glands during the plateau phase.
  • Impulses from the brain and local nerves cause the muscles of the corpora cavernosa to relax, allowing blood to flow in and fill the open spaces.
  •  The blood creates pressure in the corpora cavernosa, making the penis expand.
  • The tunica albuginea helps to trap the blood in the corpora cavernosa, thereby sustaining erection.
  • In the initial event penile erection is produced by arteriolar dilatation and increased blood flow to the erectile tissue of the penis.
  • The arteries in the penis respond and widen, and dilates to twice its diameter, increasing the blood flow sixteen-fold, and the veins which carry blood away from the penis are blocked.
  • This allows more blood to flow into the penis. The arteries expand and then harden.
  • The veins that carry blood away from the penis get compressed. This restricts the blood flow out of the penis. More blood flows in and less flows out. This makes the penis larger and cause hard erection.
  • Erection is reversed when muscles in the penis contract, stopping the inflow of blood and opening outflow channels.
  • The orgasmic phase is characterized by seminal emission and ejaculation and the accompanying sensations.
  • Emission of semen into the urethra depends on sympathetic nerves that elicit contractions of smooth muscles in the vas deferens, seminal vesicles, and prostate. Rhythmic contractions of striated muscle (bulbocavernosus and ischiocavernosus) generated by efferent pathways in the pudendal nerve eject semen from the urethra.
 
Physiological mechanism of erection
Sexual Impotence / Erectile Dysfunction

Erectile dysfunction is defined as the inability to achieve or maintain an erection as part of the overall multifaceted process of sexual function. This definition deemphasizes intercourse as the essential or only aspect of sexual life and gives equal importance to other aspects of male sexual behaviour.
 
 
Levels of Erectile Dysfunction
There are different levels of erectile dysfunction:
A total inability to achieve erection
The occasional ability to achieve erection
An inability to maintain erections
The ability to achieve erection, but inability to control ejaculation
   
Erectile Dysfunction may be a cause of
Psychological problems
Neurological problems,
Abnormalities in blood flow,
Damage to the genital organs,
Hormonal imbalance,
Use of drugs or medications
Pathological Reasons
Diabetes, Heart disease, Leaking veins, Neurological injuries or disorder, Drugs, Pelvic surgery.
 
Problems Associated With Erectile Dysfunction
Many cases of sexual dissatisfaction are related to problems in the control of ejaculation or in the loss of sexual desire unrelated to achieving or maintaining an erection.
Major problems which are associated with erectile dysfunction are Premature Ejaculation, Retarded Ejaculation, Retrograde Ejaculation, Loss of Libido (Sexual Desire),Decreased Orgasmic Intensity
 
Product Mechanism

After knowing the structure of penis, erection mechanism of penis and erectile dysfunction now we come upon to the mechanism of Night PassionTM by which it takes care of the impotence.
 
Mechanism
 
 

Herbs combination in Night PassionTM helps in overcoming the sexual weakness and impotence by rising the testosterone levels in the body by stimulating its secretion from gonads naturally.

Herbs in Night Passion also nourish body tissues and provide energy to body hence improve the psychological factors responsible for Impotence.

It triggers the sexual stimulus by increasing the testosterone levels in body immediately after intake.
Sexual stimulus in males leads to a release of nitric oxide (NO) into the blood vessels of the corpus cavernosa (erectile tissue). (NO) activates enzyme guanilate cyclase activity which increases cGMP (cyclic guanosine monophosphate) concentration, which allows for the relaxation of penile arteries, leading to increased blood flow and penile erection. In the absence of NO release, cGMP is terminated by enzyme PDE5. cAMP also affects penile erection. cAMP (cyclic adenosine mono phosphate) is modulated by adenyl cyclase, which result in a decline in the free calcium concentrations, which allows for the relaxation of penile smooth muscle leading to vasodilatation and erection. It increases and enhances the levels of cGMP and cAMP, which ultimately leads to the penile erection.

Testosterone is the most important of the male sex hormones and is secreted by the gonads. Its secretion stimulates the differentiation of the male reproductive tract in the embryo, the decent of the testes into the scrotum, the further development of the reproductive tract and penis during puberty and maturation of the sperm. Testosterone also play a role in the development and maintenance of male libido (sexual desire) and behavior.