In fact, pea is a nerve stimulant, which can make people feel extremely excited and make people feel more energetic, confident and brave. Because of PEA, people's breathing and heartbeat will accelerate, their hearts will accelerate, their palms will sweat, their faces will turn red, especially whether their pupils will be dilated. This is the best criterion for judging true love or perfunctory.
People in love like to make vows of eternal love. I am willing to spend nine days on the moon for my lover and catch turtles in the five oceans. This really can't be said to be a deliberate deception, because at the time of commitment, a deeply loved person will really believe that he has such ability. The unprecedented expansion of self-confidence is one of the side effects of PEA. Another side effect is that people will be biased and persistent, and lose the ability to think objectively. Believe that you have made the right choice and only look at what you like. As the saying goes, beauty is in the eye of the beholder. A Swiss scientist from the University of London once recruited young men and women who claimed to be in love as volunteers and recorded their brain activities by using magnetic vibration imaging technology. The image shows that when they see photos of lovers, the blood flow in four specific areas of the brain rises sharply, while at the same time, some activities in the brain responsible for memory and attention are suppressed, so those men and women who are in love naturally become "stupid".
In order to show that "love makes people stupid" is equality regardless of racial boundaries, he selected volunteers from 1 1 different countries.
Chocolate is really the best love food, and its pea content is the highest among all foods. Therefore, it is scientific to send chocolate to your lover.
PEA (phenylethylamine) is naturally synthesized by human body, and another substance, the scientific name is isopropylamine, is artificially synthesized. From the chemical structure, these two substances are very close and their functions are quite close. The trade name of isopropylamine is well known-amphetamine (amphetamine), central nervous system stimulant, and also a famous drug. This substance is the main component of ecstasy.
Dopamine security, satisfaction
Another important love substance is dopamine, which can produce a very happy feeling. Dopamine is the precursor of norepinephrine biosynthesis and one of the central transmitters. It can increase myocardial contractility and cardiac output. Cerebral vasodilation and increased blood flow. It has a slight contraction effect on peripheral blood vessels, which increases arterial blood pressure. One of the functions of dopamine is to stimulate the secretion of oxytocin. This hormone N affects women's childbirth and lactation, and has the effect of eliminating tension and depression. It is generally believed that the sense of security and satisfaction felt when hugging is inseparable from this hormone.
The cause of Parkinson's disease is the lack of dopamine in the patient's brain. Dopamine is a kind of nerve conduction substance, which is like a "messenger" in the brain, responsible for transmitting commands issued by the nervous system to muscles and directing muscle work. Lack of dopamine, nerve control orders can not be conveyed, so there will be disobedience. People with too much dopamine are more inclined to look for the meaning of accidental events and piece together meanings and patterns from scratch. Peter Brugger) disclosed the above research at the meeting of the European Federation of Neuroscience Societies held in Paris at the end of June. (Norepinephrine) The feeling of heartbeat The third kind of love substance is called norepinephrine, which has strong vasoconstriction and nerve conduction, and will cause the increase of blood pressure, heart rate and blood sugar content. The so-called heartbeat feeling is that norepinephrine is at work.
When you are full of these love materials, it is also the time when you are madly in love. But unfortunately. In the human body, these love substances cannot always be at a high level. The human body has a strong self-regulation ability and always tries to adjust its state back to normal. Once the material of love disappears. People will recover from such a drunken state, or, as we often say, lose the feeling of love. Generally speaking, the peak concentration of PEA can last for about 6 months to 4 years, with an average of less than 30 months (2.5 years), depending on individual and environmental differences. This is very close to the data obtained from sociological investigation.
The emergence of endorphin marriage
Everyone who has loved knows that love should have something else besides passion. After the vigorous love, we need another love substance endorphin to fill our passion. The effect of endorphins is very close to that of another drug, morphine, which is a sedative. It can reduce anxiety and make people feel comfortable, warm, cordial and calm.
Scientists point out that exercise can make the brain release the emotional element endorphin, which can make people feel happy and full of energy. The more you exercise, the stronger this feeling becomes. Endorphins and peas feel completely different. They make us like love, while the former makes us like love. Although this can't make people excited and excited, this warm feeling can also make people hide. Generally speaking, the longer the marriage exists, the stronger this state will be. One of the reasons is that both husband and wife are used to the tranquility brought by endorphins. It seems that the key to make love last forever is to secrete enough endorphins before the passionate substances such as peas fade away.
Obviously, the role of endorphins is completely different from that of love hormones such as peas. Maybe we can call endorphins marriage hormones. After the level of love hormones dropped, marriage hormones began to play a leading role. The material basis of marriage does not necessarily require the participation of love materials.
Just like some people are naturally hard to be moved by love, some people just can't take enough endorphins to settle down. Their love life is composed of a series of passionate love-breaking up, and the cycle is the fluctuation cycle of love material, usually 6 months to 4 years. If they get married unfortunately, then extramarital affairs will become a necessity. They are not so much a dissolute attitude towards life as a pathological manifestation, and it may be more appropriate to call them love addicts.
Love addicts pursue the ecstasy and madness brought by love, but when the initial climax of phenyl ethylamine's secretion is over, they will feel unprecedented loss, so they have to find new objects again to achieve the next passion and satisfaction. Just like people are resistant to stimulants. When their bodies get used to higher and higher concentrations of peas, these addicts will find that they can't feel the impact of love as they did at first.
Vasopressin (vasopressin/pituitary hormone)
It has been verified in animal experiments that male voles injected with vasopressin (vasopressin/pituitary hormone) are much more interested in mated female voles than other female voles, and are more aggressive in the face of intimate behavior between other male voles and their partners. In recent years, several experts in the United States (such as Sue Carter and ThomasInsel) tried to compare the soil-sown rat with a particularly stable partnership with the most unstable mountain rat, and found that the soil-sown rat is particularly sensitive to vasopressin, while mountain rat is the opposite; At the same time, once the above hormones are disturbed during mating, they should not be combined as partners after mating. Once the hormone-sensitive gene is transplanted into mountain rat, mountain rat is more willing to take social responsibility and spouse responsibility. These experiments show that even chastity and loyalty may be biochemical slaves.
If the above biochemical reactions do affect the relationship between men and women, then even if couples don't realize where their attraction comes from, their relationship should belong to the perceptual category. According to ordinary people's description of * *, the spectral range from mild stress to refreshing and mutual gratitude seems to be infinite. At the same time, unfortunately, due to the time and space constraints when choosing a spouse, everyone can't reach as many potential objects as possible. Therefore, if you don't consider other factors besides * *, as long as you choose a spouse (whether married or not), with the change of time and space conditions, the possibility of contacting other "feel better" objects is infinite. In addition, everyone's physiological changes (such as vasopressin hormone) may also lead to changes in taste. Traditionally and morally, we all believe that monogamy is an act worth promoting. The reason why humans need this vasopressin hormone and a safe and reliable partner may be because the pregnancy process is special and the child grows very slowly, so a stable partnership is conducive to the safe growth and continuation of the race. In the process of studying several hormones in the posterior pituitary gland, some scholars unfortunately found that the secretion and induction of these hormones that dominate feelings are not eternal. Often their supply and induction will increase or decrease with the change of time and space conditions.
Theresa L. Crenshaw, MD, studied the role of vasopressin in human body. She believes that human touch will increase the hormone level in the posterior pituitary gland, thus promoting people to feel love. Synthetic pituitary hormones can be used to treat depression and obsessive-compulsive behavior.
Dr. Kim, a sexologist, mentioned in her new book; Sexual attraction is related to chemicals produced in our bodies. Besides endorphins, such as monoamines and serotonin tell us that once in love, these chemicals will gradually disappear, and we will lose the sense of loss or excitement in love. However, at the same time, we will also enter the attachment period: men and women are interdependent and develop more mature sexual relations. At this time, oxytocin (oxytocin, one of pituitary hormones) or vasopressin (vasopressin/pituitary hormone) will make us feel calm and satisfied.
However, some scholars believe that pheromone is the main reason that affects sexual attraction. Some people even call it a "love panacea" because few animals can resist its power, even insects are no exception. Facts have proved that as long as a little pheromone is given to the mother moth, all male moths will be unable to restrain their sexual desire and rush to the mother moth, even if there is a barrier between them.