Sex life is a rather voluminous concept. This concept includes everything that is aimed at strengthening those feelings that underlie the physical closeness between a woman and a man. An integral part is sexual intercourse. In addition, physical intimacy between a woman and a man provides for a certain culture of sex, in particular, and the relationship that develops between spouses, in general.
Physiology of sexual intercourse
Copulation is an unconditioned reflex and is presented as the final stage of the entire period of sexual life. Contrary to popular belief, coitus (sexual intercourse) is only part of the entire complex set of sexual relationships.
Before intercourse, there is always, to one degree or another, a long stage of sexual dominance associated with an increased attraction and dominance of feelings and thoughts about the impending intimacy. At such a moment, the goal of direct rapprochement is clearly understood. In men, an increase in the content of androgens in the blood and, as a result, the expansion of the blood vessels of the penis contribute to the appearance of an erection.
Sexual intercourse is a rather complicated process. The coitus is composed of certain physiological and psychological factors that replace each other conditionally unconditioned reflexes, manifested in the form of certain phases. Moreover, each subsequent one can begin only after the previous one has reached a certain level of development. So, a healthy man without attraction does not experience an erection, without it frictions are impossible, and an orgasm does not occur without ejaculation. Moreover, when the next phase sets in, the previous one not only accompanies, but also actively supports it. This is how a continuous intensification of the excitatory process is formed, which covers all physiological systems in the body.
It is believed that sexual intercourse consists of three main phases. The first - neurohumoral - involves hormonal saturation of the blood. The second phase - the psychic - involves a certain preparation for rapprochement. The next phase - erection - involves the appearance of an erection in a man. The frictional phase is associated with the introduction of a member into the vagina and frictions until an orgasm with ejaculation is obtained. The final stage is a decline in all available reactions. This phase is more pronounced in men - during it the attraction temporarily disappears. At the same time, the disappearance for some time of the sensory element does not imply the complete indifference of the spouses to each other. Man and woman experience the warmth of human love and mutual gratitude for satisfaction.
A man is characterized by a faster onset and course of physiological reactions, as well as a rather abrupt cessation of them. In women, as a rule, the preparatory period lasts longer, and the feeling of satisfaction comes a bit later and at a relatively slow pace, compared with a man. When a woman feels love for a man, it is easier for her to tune into an intimacy with him, as a rule, in these cases an unprotected act occurs. Female excitement and subsequent gratification is enhanced by a man's sense of pleasure. Male orgasm, which is accompanied by ejaculation, significantly increases the sexual arousal of a woman.
During intercourse, blood pressure rises, pulse increases. In the phase of orgasm, the pulse rate can reach one hundred twenty to one hundred and eighty beats per minute. A sharp rush of blood to the brain can provoke mental disorders for some time. Breathing becomes shallow and intermittent, and at the end of orgasm is replaced by several deep breaths.