Sex is one of the most beautiful things imaginable. That is, it produces pleasant and very intense sensations. In particular, the pursuit of sexual pleasure has an evolutionary significance. In particular, it is that drive that favors the attraction between two individuals. Then, mating should be followed by fertilization. In other words, sexual pleasure is a tool created by nature during evolution. Especially to push two individuals to mate. That is, all this is aimed at the multiplication of the species.
SELECTION OF PARTNER
Then, the various animal species have developed different techniques and rituals aimed at selecting the best possible partner. That is for the attraction between two individuals. For example there are some species in the strongest male has the right to mate with the females of the herd. That is, this is the system developed over millions of years of evolution to reproduce the genes of the best individuals. In particular, those most suitable for creating strong and resistant children. Then, in some bird species the female chooses to mate with the male who offers him gifts. For example in the form of food or branches suitable for building the nest.
Especially the species that need the cooperation of both parents use this partner selection technique. That is, the male who brings gifts to the female shows his spiritual and material ability to look after the future family. In particular, this is also valid in courtship between men and women in the human species.
GENETICS, AESTHETIC APPEARANCE AND PHEROMONES https://www.healthdirect.gov.au
Aesthetic appearance is also important in many species for the attraction between two individuals when choosing a partner. In other words, in birds an orderly and colorful plumage indicates a good quality of the partner’s genetics. In particular, this quality will be high not only for aesthetics but also for many other aspects related to survival. For example, the search for the best genetic combinations among the members of the couple is linked to pheromones. In other words, the attraction between animals of the opposite sex. Or what men poetically call love at first sight has a chemical basis. That is, pheromones create an unconscious chemical attraction between individuals whose mixing between genes can give the best results. In addition, nature tries to mate individuals whose children should have the best immune capabilities.
CHEMISTRY OF SEXUAL PLEASURE
Sexual pleasure prompts two individuals to mate. That is, in search of pleasant and very intense sensations. Especially because, otherwise, sex would only be perceived as a useless waste of energy. Sex is a very intense phenomenon that produces significant physical and psychological changes. In particular, it could not be otherwise because it is aimed at the fundamental task of the continuation of the species. That is, at the moment of sexual intercourse, the brain releases a large amount of hormones. In addition, other chemicals that produce a real physical and mental upheaval.
For example, oxytocin is released into the blood at these times. In particular, it is a hormone produced by the hypothalamus and released by the neurohypophysis. That is, oxytocin promotes sexual desire which produces arousal. In other words, the arousal produced is both physical and biological. Then it produces a strong increase in desire for the other partner and generates sexual pleasure up to orgasm.
CHEMISTRY OF SEXUALITY IN MEN AND ANIMALS https://www.ashasexualhealth.org
The chemistry of sexuality is very different between humans and animals. That is, in the animal world, sex behavior is linked to instinct and biological cycles. But in man it is very different. That is, man tends to want to experience pleasant and intense sensations. Then he dominated nature because he has a brain much superior to that of other animals from a rational point of view. In other words, brain development from infancy to adulthood is something very complex and unique in the animal world. That is, man is the only animal that is born completely inept having a brain, if I may use this term, almost empty at the moment of birth.
For example, the human brain, at birth, is the one with the least instinctive genetically programmed behaviors. In other words it is an empty brain but with an enormous capacity to fill itself by learning from the outside world. Moreover, this great ability of the brain to learn based on experience and knowledge has made man superior to other animals.
EVOLUTIONARY IMPORTANCE OF THE INSTITUTION OF THE FAMILY
That is, the child will need a learning phase lasting many years. In other words, to be able to become an adult capable of occupying his place in society. Then the care that the child needs is called parental care and will take a very long time. First of all this is why all human societies have evolved a very important institution. That is, even in the most distant places on the planet, the institution of the family was created in the course of human development. First of all, it is aimed at creating a lasting relationship of collaboration between partners with the aim of providing lasting parental care to the child.
STAGES OF SEXUAL MATURATION
Then the impulses that are generated in a healthy individual should not be limited to a simple predatory sexuality. But, in the relationship with the other sex, affectivity should prevail. That is, the first innocent attraction, of an affective nature, is often created with a little friend of infancy. Then the thing evolves in a more complex way during adolescence. That is, in this phase the search for sexual pleasure begins. Sex or, often the mere sight of an individual from which one is drawn, generates numerous physiological changes. That is, during the sexual act, the organism undergoes great changes that do not concern only the genital area. In particular, sex involves the brain, vascular system and muscles. That is, the intensity and duration of the stimulation are linked to physiological but also psychological components.
PHYSICAL CHANGES DUE TO EXCITATION
Excitement is generated by tactile, visual and mental stimuli. That is, with the onset of pleasant and very intense sensations. For example in men, during the arousal phase there are: 1) Erection of the penis. 2) Enlargement of the testicles. 3) Often erection of the nipples. 4) Acceleration of heart rate.
Then also the woman undergoes physiological changes during arousal. In particular, they consist of: 1) Enlargement of the glans, large and small labia, clitoris. 2) Redness of the vaginal walls. 3) Erection of the nipples. 4) Vaginal lubrication. 5) Breast enlargement. 6) Increased heart rate.
PHYSICAL AND PSYCHOLOGICAL BENEFITS OF SEX
Sex is aimed at pleasure, to the attraction between two individuals and to consolidate falling in love and therefore to strengthen the couple’s bond. That is, a healthy sexual relationship must progress by seeking sexual and psychological pleasure at the same time. In particular, those lucky enough to find a partner with whom to establish a satisfying relationship will have great physical and psychological benefits. For example, a healthy and regular sexual activity boosts the immune system by increasing the secretion of IgA immunoglobulin. Then a healthy sexual activity also produces benefits for the heart by regulating the heart rhythm. That is, the cardiac stimulus during sex is equivalent to a gymnastics for the heart similar to that of those who perform a moderate physical activity. In addition, especially for women, there are advantages related to the prevention of hypertension.
Still an analgesic effect is shown against many types of headaches. In particular, because endorphins are released during the sexual act. In addition, regular sexual activity also produces benefits for the prostate. That is, because the frequent drainage of prostatic fluid removes impurities that can be potentially carcinogenic. Sleep also benefits from sex. In particular because it stimulates the release of oxytocin which has a relaxing effect. Stress is also reduced for the same reason linked to oxytocin.
BENEFITS OF SEX ON THE BRAIN
As well as thinking about love and produces pleasant and very intense sensations. It then promotes the development of new neurons in the hippocampus. In addition, long-term projects linked to love generate positive feelings and creativity. Finally, healthy sex has positive consequences on physical and mental health by producing pleasure and increasing self-esteem. That is, they are all factors that increase life expectancy.
doc. Massimiliano Mangafà