The cycle of human sexual response has various phases: sexual desire, sexual arousal, orgasm and ends with the phase resolution.
Sexual desire (libido) depends on work of endocrine glands and metabolism. Also sexual attraction depend on in the brain (cortex and subcortical layers) and the sexual centers of the spinal cord. All sex centers interact with each other and form a single system.
The degree of excitability of the sexual centers and the libido in an adult is depending on the hormone levels.
Libido (libido) depends on innate characteristics of a person associated with anthropology: the brunettes attraction stronger than blondes, in short more intense than tall; full women for sexual gratification require less effort and affection than thin; the southern sexual attraction is stronger than the northerners.
Men and women are also different sexual tension. In men sexual arousal is much higher than that of women.
If a man arousal is growing fast, getting a hard after orgasm and ejaculation arousal and the erection disappears completely, then the woman has a buildup of excitation is a long process that requires caresses from a partner. And after orgasm arousal slowly subsides.
However, if a woman has an orgasm does not come, the outflow of blood from the genital organs occurs very slowly, over hours or even longer. Lack of orgasm may occur due to insufficient stimulation of erogenous zones too fast or coitus. Then the woman is no sexual satisfaction, no sexual discharge. This leads to the fact that women are getting lower back pain, pain and feeling of heaviness in the abdomen. If you have a slow outflow of blood there is a stagnation of lymph and blood in the pelvic organs, develop inflammatory processes, painful menstruation and leucorrhoea (vaginal discharge).
Lack of orgasm is a very harmful effect on the health of women, as in the absence of discharge after a strong arousal in women there is a state of frustration — painful tension with a sense of dissatisfaction and emotional reaction.
When excessive excitability of the sexual centers in men, ejaculation occurs very quickly. This is called humilis recipis in men. If men have no erection or weak erection of the penis, this phenomenon is called impotence.
For most women, sexual desire is usually to 25-28 sometimes to 30 years. After 45-50 years of sexual sensuality is reduced. In menopausal period, sexual desire may increase, and after menopause disappears. In some women it persists up to 60 years or longer.
In men, it's different. To 25 years the demand for sex among them is much higher than that of women. Sexual attraction reaching a maximum of 28-30 years, after which it begins gradually to decline.
When the age of men is approaching the"wilting", his sex life often aktiviziruyutsya. This happens rather for reasons of a psychological nature, a fear of impending old age.
Lorem decrease in potency is not all men. Some retain sexual potency to old age.
The discrepancy between the periods of the greatest sensitivity and ignorance of these nuances can lead to a disagreement of the spouses.
Sexual satisfaction of one partner largely depends on the other partner. Sexual intercourse is the only pair physiological act of man. Therefore, if partners in sex, or the couple wants to preserve the relationship for a long time, it is necessary with understanding and patience to each other, it is possible to identify the erogenous zones of the partner and, if a man have an erection too long, a little longer to stimulate the partner before the intercourse. Often women have this erogenous zone is the clitoris.