The fact that the male penis during arousal is swelling with blood and increases in size, known to all. Member «stands», women say in such cases. «To stand» it may good, bad, barely raising his head, depending on how the man was prepared to have sexual intercourse, how woman was configured.
If a woman will take a male member with gentle hand movement and begins to massage it (kneading), then she will see the whole process of swelling. Member will harden very quickly. In the science such condition of a member called erektriey. Member becomes red, fills with blood, the head becomes red. The volume of the penis during erection increases approximately threefold. Temperature rises, it becomes a «hot». Simultaneously with the increase in the corpus cavernosum, skin is stretched and becomes thin, including the foreskin.
An erection is the most important for sexual intercourse. Sluggish, sleeping penis cannot enter the vagina. Only in an elastic and swollen form he «agrees» to enter the «business contact» with a woman’s vagina.
An erection is a reflex caused by early sexual activity. With the onset of sexual activity instinctive nature of an erection is complemented by the extensive opportunities of development it on conditional reflex mechanism. Various images of woman, memories, visual, auditory, and sensory impressions are perceived by cortical sexually center of men, as a means of strengthening erection of a member additionally. All this contributes to sexual arousal and readiness of man to have sex. In the further voltage of the penis is supported mainly by mechanical agents, received by head and skin of member during sexual intercourse.
As you already know, the sex center can be excited not only by irritation, coming from the erogenous zones, but also automatically – circulating in the blood by sex hormones. That is why men have sometimes a member «arises» «inadvertently» because of sexual abstinence and the woman feels the yearning in the clitoris and vagina.
To understand why the erectile dysfunction occurs, it is useful to know how an erection arises. When a man is sexually excited, his brain sends signals to nerve endings in the tissues of the penis. This causes dilation of blood vessels in the penis and increases blood flow to it, which, in turn, leads to an erection. At the same time, those vessels, through which usually occurs outflow of blood from the penis, are dwindling. This combination of increased blood flow to the penis and reducing it outflow, which leads to a full erection. After the sexual act occur the outflow of blood from the penis, and he returns to the relaxed state.
The term «erectile dysfunction» has replaced the outdated term «impotence». The word «impotence» is no longer used, because it does not give a clear explanation of the problem. Moreover, the use of this term led to an incorrect understanding of this condition. Men suffering from erectile dysfunction are not sterile and they retain the ability to ejaculation and orgasm, as all other men. They also have all the normal male sex characteristics. Erectile dysfunction (ED) can be defined as «inability to achieve and (or) to maintain an erection sufficient for satisfactory sexual activity.»
Most men have problems with achieving and maintaining an erection at some time in their lives, possibly due to excessive stress, receiving large amounts of alcohol, or simply fatigue. However, if this problem persists, it most likely is associated with erectile dysfunction. ED affects 100 million men worldwide and 30 million men in the United States. The study of men’s health showed the overall prevalence of ED, equal to 39% in the United Kingdom, Germany, France, Canada, Italy and Spain.
Study IMSM (Massachusetts study on issues of aging men) found that 52% of men aged 40 to 70 years in varying degrees, suffered from erectile dysfunction. A lot of men with erectile dysfunction suffer in silence because they believe that it is artificial problem that they have to put up with her because they grow old or because this problem cannot be resolved.
Sexual Health – this is an important component of the overall emotional and physical health of any person. Although erectile dysfunction and does not threaten human life, it in no way be regarded as some sort of trivial problem. Admittedly, it is – a widespread violation, based often on the physical cause.
