The term "erectile dysfunction" has been widely used to refer to a constant or periodic inability to attain and/or maintain an erection sufficient for sexual intercourse. The erectile dysfunction often occurs amongst men of all ages from 10 to 20%. According to foreign researches of the various forms of erectile dysfunction in developed countries, 52% of men aged 40-70 years suffer from this problem.
With age, sexual intercourse undergoes certain changes that must be considered as physiological. As they grow older, men lose the ability for spontaneous erections under the influence of imagination, olfactory stimuli causing arousal, or viewing pictures. Therefore, with age, the need for direct methods of stimulation of the vulva appears, which often can not find an understanding of the sexual partner (women), especially if they are accustomed to a different scenario of sexual intercourse. Despite the physiological changes among healthy men, regardless of their age, the ability for the sexual act is preserved. Age is not a limiting factor for sexual activity. However, it is the main factor leading to the emergence of androgen deficiency and chronic diseases, causing the occurrence of erectile dysfunction. This all is connected with the development of such diseases as prostate adenoma, increasing the chances of disease of prostatitis.
To be with one woman for the entire life is an achievable goal, but to have an everlasting passion for her is an unlike fact. Failure to recognize this adverse natural phenomenon can lead to an excess of unnecessary guilt in the relationship between man and woman, and clinical confusion in the relationship between doctor and patient.
Man’s sexual arousal depends not only on the currently available stimuli (visual images, tactile sensations, smells, etc.), but on fantasies too, the sources of which can serve real memories, idealistic views and erotic dreams. Moreover, it is believed that the including of erotic fantasies contributes to the process of excitation of a number of components that do not exist in reality. Therefore, fantasy often provides more meaningful information about the hidden bases of sexual desire than routine sexual behavior, which for practical reason is forced to be payed more attention from the point of view of social conventions.