Sex is the means invented by nature to make living beings reproduce. That is to allow the representatives of the various species to multiply. In particular, the evidence of the appearance of the first forms of life on earth traces this event back to about 4.7 billion years ago. In addition, the first forms of life were unicellular. That is, there were primitive cells that split in two. So two daughter cells were born from a mother cell. In particular this type of reproduction was called asexual reproduction. In addition, the formation of daughter cells identical to the mother cells slowed down all forms of evolution.
ASEXUAL SINGLE CELL REPRODUCTION
That is, the daughter cells were identical to the parent cells. So for hundreds of millions of years there was a very slow evolution. That is, the only differences between primordial cells and daughter cells were due to random DNA copying errors. Consequently, if the way to reproduce living beings were still of the asexual type, there would have been no evolution. In fact, a mixing of genes occurs through sex. That is, the children are not identical to their parents. In addition, nature uses natural selection to choose from among many different individuals who is best suited to survive. As a result, the living have undergone continuous improvement.
That is, we have passed from primitive (prokaryotic) cells to more evolved (eukaryotic) cells. Then to cell colonies. Then to the first multicellular organisms. Finally, the first plants and animals appeared on earth up to the wonderful biodiversity that populates the planet Earth.
In short, the first forms of sexual reproduction occurred between unicellular beings who exchanged genetic material through the sex pilus. That is, a kind of tube through which DNA passed from one cell to another. Then evolution allowed the exchange of genetic material between multicellular beings. That is, animals and plants. In particular, the differentiation between the sexes was born. So appeared the actual way that make living beings reproduce.
BEHAVIORAL EVOLUTION RELATED TO SEX
That is, nature to reproduce living beings devised mechanisms to favor the attraction between individuals of the opposite sex. Consequently, the process studied by Sigmund Freud took place. That is, a series of conscious and unconscious behaviors involving humans and animals aimed at reproduction. In fact, nothing is accidental in sexual attraction.
In particular, a beautiful face is appreciated by the potential partner because it is symmetrical. That is, this proportion reveals the presence of good quality genes. That is, they did well in building the organism. Then other qualities such as physical strength, disease resistance and intelligence are appreciated by the potential partner because they represent an evolutionary advantage.
CHEMISTRY OF REPRODUCTIVE CYCLES
At the same time, sex is a phenomenon based on a complex set of chemical events. That is, it is built on the action of visual, olfactory and hormonal stimuli. Consequently, nature has evolved the various species in order to give them the best reproductive advantage. That is, in order to trigger the estrus phase (phase in which the female is sexually receptive) in the right period. Especially to give birth to children in the spring. That is, in the preferable period to give the unborn child a better chance of survival. That is, to make it born in the period with the hottest climate. Then further away from winter. Plus with a greater availability of food.
STIMULI FOR REPRODUCTIVE CYCLES
The synchronization of the phase conducive to reproduction in the most favorable period is determined by hormonal stimuli. Especially by hormones whose production is favored by external factors. That is, an increased amount of light perceived by the retina that indicates the arrival of spring. Then a rise in temperature has the same function. In addition, the reproductive phenomena are favored by a sufficient blood glucose rate. That is, a signal that communicates to the body that a period of the year favorable to the greater availability of food has arrived.
FOOD MANAGEMENT OF PREGNANCY
In particular, all this is useful for the survival of the pregnant woman and the unborn child in the first period of life. In fact, it is known in human and veterinary medicine that some precautions are essential to make living beings reproduce successfully, fertilization and gestation. That is, it is essential to reduce stress in the period before mating. In fact, the stressed organism enters an alarm condition and therefore produces cortisol through the adrenal capsules. That is, it is known as the stress hormone. Furthermore, excess cortisol is an obstacle to sexual activity. That is, it blocks the hormonal system based on the production of ova and spmatozoa. In addition, the hormonal decline causes a drop in libido. That is, all this represents a form of defense of the organism. That is, it perceives stress and blocks reproductive phenomena.
PRECAUTION DURING PREGNANCY
In particular, all this is useful for the survival of the pregnant woman and the unborn child in the first period of life. In fact, it is known in human and veterinary medicine that some precautions are essential for the success of mating, fertilization and gestation. That is, it is essential to reduce stress in the period before mating. In fact, the stressed organism enters an alarm condition and therefore produces cortisol through the adrenal capsules. That is, it is known as the stress hormone. Furthermore, excess cortisol is an obstacle to sexual activity. That is, it blocks the hormonal system based on the production of ova and spermatozoa. In addition, the hormonal decline causes a drop in libido. That is, all this represents a form of defense of the organism. That is, it perceives stress and blocks reproductive phenomena.
Then something similar can happen to the woman too. In fact, stress or food shortages can hinder the reproductive cycle. In addition, diseases that hinder fertility can occur in humans. That is, problems such as cryptorchidism, hypogonsdism, varicolcele. Consequently, in this case, it would be useful to consult a doctor.
LIFESTYLE AND ANTIOXIDANTS
In addition, proper nutrition and lifestyle management may be sufficient for less serious problems. That is, positive results could be obtained by correcting the diet or by resorting to supplements. So I would start by recommending antioxidant supplements to reduce oxidative stress. That is above all based on selenium, vitamin C and vitamin E. In addition, it is essential to avoid hypertension, obesity, dyslipidemia, hyperglycemia. So, the phenomena of insulin resistance have been associated with poor sperm quality. In particular, they suffer damage in terms of number and motility.
BEWARE OF GLUCOSE AND ANTIOXIDANTS
To make living beings reproduce successfully may be useful to respect some food rules. Therefore I advise not to exceed with calories and to limit the ingestion of refined sugars a lot. In addition, fertility benefits greatly from the regular ingestion of fresh fruit and greens as for all other functions of the body. Furthermore, the discussion is similar for beneficial lipids such as omega3s. Then another very useful antioxidant is the lipoic acid contained in the liver. However, I recommend ingesting the liver in moderate quantities to avoid overdoses of vitamin A. In addition, another vital vitamin in reproductive phenomena is vitamin B. That is a vitamin present in food products of animal origin.
In conclusion, the best advice to manage a pregnancy in the best way is to follow a varied diet. That is, rich in vegetables, a sufficient quantity of proteins and a correct caloric intake. Consequently, it is always useful to apply these simple rules that I have listed with the advice of your doctor.
doc. Massimiliano Mangafà