A lot of pregnant mothers have heard of the saying “a pregnancy is silly”, which means that women become confused in the three years after pregnancy: they can’t think about what they had planned, they forget that the lock on the door is locked or not, and they can’t think about what they had done in the end, which is particularly important. Experts say that this “silly” is not really silly, but more of a psychological change after pregnancy. First of all, from the physiological point of view, “a pregnancy silly three years” and the physical changes in the body after pregnancy is not much related. According to some claims, the reason why the pregnancy “become stupid” is because of women’s pregnancy, the body hormone levels become lower caused. In this regard, experts explain that, in general, only women after menopause, the body’s hormone levels decreased, will lead to memory loss. The hormone levels of pregnant women do not decrease after pregnancy, on the contrary, hormone levels will increase, so the argument that lower hormone levels affect memory after pregnancy is not justified. It’s not that the mother is dumber, it’s that the baby needs the mother’s undivided attention, a parenting style shaped by human evolutionary development. This “primitive maternal attention” occurs about 1-4 months after birth and lasts about 1-1.5 years, although each mother’s situation is different. This is actually a misconception, experts say, the reason why many people think that fever will burn the brain, because some viruses, bacteria and other infections can cause fever, and these infections, can cause encephalitis, meningitis leading to damage to the brain, and even cause neurological sequelae. This damage is produced because of damage to the brain, and not all fevers cause brain damage. Not all fevers cause brain damage, but fevers such as hypoglycemia, poisoning, and metabolic diseases do not necessarily cause brain damage, so it is not scientific to rely on body temperature to determine whether brain damage is caused. However, this does not mean that a fever does not need attention, because a persistent high fever is prone to cause repeated febrile convulsions, which can have an impact on the child’s brain. Generally speaking, if the child’s temperature does not exceed 38.5 ℃, you can use physical cooling or give the child fever-reducing drugs. Once the fever does not go down for more than 3 days, or when it is still bad after taking antipyretic drugs should promptly seek medical attention. Eat fruit to pay attention to the time “the morning fruit is gold, noon to three in the afternoon is silver, three to six is copper, after six is lead”, said the morning to eat fruit absorption is the best, the worst in the evening. This statement is not scientifically justified, because the digestive capacity does not differ much during the day. Experts say that the digestive and absorption capacity of the human body and the time of eating do not have much to do with each other. The ability to digest and absorb is mainly related to the secretion of digestive juices and the ability of gastrointestinal motility. After eating, the digestive system will secrete digestive juices, enhance peristalsis to promote digestion and absorption, fruit nutrients are fixed, that is to say, whether it is morning or evening, for healthy people, there is no difference in the absorption of fruit by the digestive system. Although there is no big difference between the three time periods of eating fruit in the morning, in the evening, but before or after the meal for some people still need to pay attention to. In general, it is better to eat some fruits before the meal, which can help to make the digestive tract work in advance and facilitate the digestion and absorption of food. But some of the more acidic fruits should not be eaten before the meal, such as persimmons, hawthorn, etc.. For children and the elderly, fruits should also not be eaten before meals, because it will affect the normal eating of children and the elderly, as a supplementary meal is better. The left ear is healthier to answer the phone This statement is completely unfounded. The left brain is the logical brain, in charge of creation, language, emotion, etc.; the right brain is the image brain, in charge of spatial imagination and emotion, responsible for music, art and space recognition. So in terms of brain function, the left and right brain are equally important. However, this does not mean that you can be reckless “phone porridge”. Experts say that the damage to hearing is more obvious after a long time on the phone, in addition to a long time on the phone, the phone is hot, close to the face, plus the body bacteria, will lead to facial dermatitis. And cell phone radiation does exist, usually try to use less cell phones, control the call time, long time to answer the phone, left and right ear rotation, it is best to use the headset line, when using headphones need to pay attention to the volume. When sleeping, the phone should not be placed on the pillow, try not to put the phone close to the head and heart. Eat soy sauce skin will become darker There has been this saying that eating soy sauce will make people’s skin darker, and some people believe that eating soy sauce when there is a wound will cause the wound scar to become darker. Experts say that the ingredients in soy sauce have nothing to do with the melanin that causes skin darkening, and that eating soy sauce does not cause skin darkening. Experts point out that soy sauce is mainly made from soybeans, starch and wheat flour through fermentation, and these ingredients turn into a colorless mixture of amino acids and peptides when consumed. The reason for this claim may be because the color of soy sauce is reminiscent. In fact, the black color of soy sauce comes from the caramel pigment it contains and does not promote melanin formation. However, some photosensitive foods do affect the skin a bit, such as celery, figs, parsley, etc. It is recommended to avoid sunlight for too long after eating to avoid the phenomenon of phototoxicity, which leads to post-inflammatory hyperpigmentation. Also if there are wounds on your body, you should avoid being exposed to the sun, otherwise melanocytes will be easily activated by UV rays and your skin will easily turn black. The more you shave the denser the hair shaving will not have any effect on the thickness of the hair, because the human hair follicle is fixed in number at birth. Experts point out that the density and growth rate of hair growth is mainly related to individual genes and hormone levels in the body. In addition, it is also related to its growth area and temperature, such as the hair on the head grows fast, the extremities grow slowly, when it is hot, it grows fast when it is cold, etc. Then why some newborns shave their hair more dense, and boys shave their beards look much thicker? Experts explain that this is just people’s illusion, because the human hair is like a tree trunk, the upper part is thin, the lower part is thicker, when the top of the thin and soft tips are scraped away, only the bottom is left thicker and harder section, so it looks denser, touching also feels a little tingling. The more white hair is plucked the more hair that grows out is black or white, depending on the secretion of melanin in the body, and has nothing to do with plucking or not plucking hair. Experts say that our hair grows from hair follicles, and one hair follicle grows 2 to 4 hairs on average. The color of the hair is determined by the melanin secreted by the hair mother cells in the hair follicle. If the number of melanin particles is high and dense, the hair will be black, and vice versa, the color will be light. There are many reasons that affect melanin secretion, for example, generally after the age of 40, melanin produced by melanocytes will gradually decrease, while genetic factors, poor nutrition, mental stress, lack of sleep, poor digestion, will also affect the secretion of melanin, resulting in the appearance of gray hair. Radiation protective clothing for pregnant women can shield radiation Radiation has a broad and narrow sense, the narrow sense of radiation is what we call nuclear radiation, while the broad sense of radiation refers to the radiation of electromagnetic waves and other electromagnetic waves, which are caused by computers and cell phones and other household appliances. The direction of electromagnetic radiation in daily life is chaotic, and the collar and cuffs of radiation-protective clothing may become the “entrance” of electromagnetic radiation, so that wearing radiation-protective clothing can not be blocked. Only those who work in places with high electromagnetic emission intensity need to take radiation protection measures. Most Japanese obstetricians and gynecologists recommend that pregnant women turn off the power of household appliances every day before going to bed. As for buying radiation-protective clothing, doctors do not recommend it. The main measures most Japanese pregnant women as well as ordinary people take to protect themselves from electromagnetic radiation are to wash their hands and faces regularly after facing a computer for a long time to remove dust caused by electromagnetic waves, and to answer cell phones with headphones, etc.