Does too much salt affect IQ?

Recently there was another hot topic on “salt”, an article titled “Too much salt can make you stupid” broke out in the circle of friends and caused a lot of panic. The matter originated a few days ago American scientists in the British journal “Nature Neuroscience” (Nature Neuroscience) published a mouse study from Weill Cornell Medical College. The study showed that a high-salt diet can trigger cognitive deficits in the brain. So, is it really that bad? Let’s get you up to speed today! Where does the claim that eating too much makes you stupid come from? The researchers mainly fed and observed mice with food containing 4% or 8% salt, and after the test proved that: the blood flow in the cerebral cortex of the experimental group of mice decreased by 28%, and the blood flow in the hippocampus decreased by 25% after only 8 weeks, and, in the maze test, the experimental group of mice had a much worse sense of direction than the control group of mice, and their reaction speed decreased significantly; their performance in nest building was also very slow; the test finally proved that “A high salt diet affects brain health, and high salt habits can lead to changes in the gut immune system, which in turn can lead to cognitive deficits. The test is very professional, the results are very significant, but for this experiment there are also many problems: 1, for this test, the experimental subjects for mice, about the role of food, animal experiments are only animal level, and can not be fully grafted on the human body; the dose added to the animals and the human body does not match, people for food intake is after all limited, the problem of differences need to be noted. 2, the amount of salt added in the test is 8 to 16 times more than the normal healthy diet, for people with heavy tastes, they can not swallow, so you can not directly “infer the conclusion”, and “put aside the dose to talk about toxicity is irresponsible”, any reaction should be There is a reaction condition, the amount of food added in the experiment in humans and can not be “manipulated”. 3, mice’s “weight, blood flow” and other physical characteristics and the human body is very different, can not be directly “applied to the data”, that is, the conclusions of this test for human bias. Therefore, this grafted on the human statement is not accurate. However, there is a very close relationship between salt consumption and health, as chronic diseases such as hypertension, calcium deficiency and even stomach cancer are indeed partly caused by too much salt (leading to conditions). How to use salt wisely? Our dietary guidelines recommend that a person’s daily salt intake is less than 6 grams, of which 2 grams of salt is the amount of salt contained in the food people eat every day, the actual amount of salt used in stir-fry should be 4 grams a day, the amount of salt intake (6 grams) is equivalent to the amount of an ordinary beer bottle cap paved flat. 1, cooking with more vinegar, lemon juice and other sour sauces, replacing part of the salt and soy sauce, but also to improve the taste of food, to taste delicious. 2, more use of steam and other low-temperature cooking, less use of fried fried way; more enjoy the natural taste of food. 3, eat more flavorful dishes, such as pumpkin, tomatoes, peppers, etc., with the taste of the food itself to increase the taste. 4.When using soy sauce and other condiments, use points, dipping and other ways, rather than a one-time soy sauce are put into the dish. 5, choose low sodium salt. Low sodium salt contains about 70% of sodium chloride and 30% of potassium chloride, so if you choose to consume the same weight of low sodium salt, you will in effect reduce your sodium intake by about 30%. The most important thing is that the saltiness of low sodium salt is not much different from that of ordinary refined table salt, so the effect of reducing sodium and potassium is not reduced salty. 6, find the right food. Natural fruits and vegetables themselves have their own special aroma and taste, in the processing process can completely reduce the addition of salt, in order to achieve the effect of seeking the original taste. 7, put salt before the pot. Put salt before the pot because the salt on the surface of the food and not penetrate the food inside, the tongue also feel the saltiness when eating, reducing the “light” feeling, thus reducing the intake of salt. 8, refuse invisible salt. In addition to edible salt in life, but also contains a very large number of “invisible salt”, such as salted fish, salted eggs, pickles, instant noodles, etc., but in addition to these familiar high-salt food, there are many people ignore the high-salt food, such as “sweet drinks, noodles, cookies “etc. are included. There is a conversion factor: 1 gram of salt = 400 mg of sodium, so when too much sodium ions in food intake will also affect our blood pressure, so when consuming these foods must be calculated by converting the amount of salt in order to reduce the total salt intake of three meals to achieve a better salt reduction effect. Since too much salt is indeed a greater threat and can easily lead to various chronic diseases, eating less is the way to go. Eat salt healthily, control smoking scientifically, and don’t let your life be “salt” unintentional.