Xiao Jiu saw the previous report:

Mr. Zhang from Sichuan, when he saw that the mushrooms in the wild grew lovely, picked some and went home to stir-fry and eat. Because I was worried about being poisonous, I remembered the costume drama I watched before, and I deliberately threw the silver bracelet I was wearing into the pot to test the poison.

But in the end, I didn't escape, not long after eating, I had mild poisoning symptoms such as dizziness, but fortunately I went to the hospital in time, and there was no major problem after gastric lavage.

Is the bracelet too fake or the mushroom too poisonous, what's the problem?

1. Is the "Silver Needle Poison Test" Reliable? Why Does the Ancestors Work?

Many people have seen the plot of the silver needle drug test in costume dramas, and many people have the idea of imitation. Don't look at the Sichuan brother who failed, but in ancient times, the silver needle could really test for drugs.

Song Ci, a famous forensic doctor in the Southern Song Dynasty, once recorded a "Huai'anqi case" in the "Collection of Grievances", and the method of solving the case at that time was to test the poison with a silver needle.

However, this method is not suitable for modern times, because the ancient poison is generally arsenic, which has a poor purification process, and has a large amount of sulfur in it. When the silver needle comes into contact with it, it reacts to form black silver sulfide.

In addition, there are many types of poisons in modern times, which are not as simple as in ancient times.

There are 2,828 chemical substances recorded in the Catalogue of Hazardous Chemicals, and the toxicity of these poisons varies greatly.

In addition to chemicals, many biotoxins produced by microbial metabolism also have high toxicity, but most of these poisons do not react with silver, and naturally cannot be tested by silver needles.

Modern drug testing is more through the analysis of instruments, including chemical and biological analysis, these equipment is more complex to operate, generally only available in professional places. As an ordinary person, you can use test strips and cardboards to conduct tests on a daily basis.

Second, the more you wear the silver bracelet, the blacker it becomes, is it because it absorbs toxins from the body?

We often see on the Internet that silver bracelets are good and help detoxify, and they turn black because they absorb the body's toxins, is this reliable?

Wu Naiying, an associate professor at the School of Science at Hebei University of Engineering, said that the blackening of silver jewelry is actually a normal chemical reaction. It reacts chemically with oxygen in the air to produce gray-black silver oxide on the surface, making the silver jewelry visible to the naked eye.

As for the so-called detoxification of silver bracelets, this claim is naturally not credible.

The human body has a complete metabolic and detoxification system, when there are toxins in the body, they will enter the liver for decomposition, enter the metabolic trachea with blood circulation, and finally be excreted from the body in the form of sweat, urine, respiration and feces.

Some say silver bracelets are good, and some say silver bracelets are bad.

We traditionally like to wear silver bracelets on newborn babies to wish them peace and security. But there is a saying that wearing a silver bracelet will make a child stupid, why is that?

The claim comes from the fact that "silver bracelets can cause lead poisoning", and in fact, too much exposure to lead does make children stupid. Lead poisoning can cause irreversible damage to the nervous system, and can also affect normal growth, mental development, and even lead to acute brain damage and death in severe cases.

It is undeniable that some merchants will add a certain amount of lead in order to improve the flexibility of silver jewelry and the frequency of mold turning, and at the same time reduce costs.

However, the relevant standards in mainland China have clear mandatory standards for this, and the lead content in jewelry must be less than 1‰. As long as it is a silver jewelry that meets the standards, it will not affect your health when worn normally, so there is no need to worry about this.

3. Gold and silver jewelry has radiation, will it cause cancer if worn?

The gold and silver jewelry we wear daily is not a radioactive component, and the metal sold by regular merchants in the market will also be properly processed during processing to reduce the radiation in the jewelry. When buying jewelry, as long as it is purchased through regular channels, you can basically wear it with peace of mind.

What we really need to be vigilant about is actually these kinds of jewelry, which are likely to affect health.

1. Hen beads

There is toxic protein in chicken beads, which can be fatal at 3μg. Although there is no harm in wearing a complete hen bead, it is troublesome to accidentally break or eat it by mistake during wearing.

2. Dyed agate

Some of the colorful agate sold on the market are mostly processed and dyed from cheap gray and white agate raw materials.

The agate made using this process is likely to have the problem of excessive heavy metals inside, and long-term wear will cause damage to the liver and kidneys, central nervous system, and even cause cancer.

3. Walnut bracelets

Walnuts are very susceptible to mold, and aflatoxin is easily produced after mold. Long-term wearing on the hand or playing with it can easily lead to chronic poisoning of the body.

4. Imitation gold and silver jewelry

Imitation jewelry is mostly made of alloys, and in order to make the color look good, some businesses will add lead, cadmium and other elements that are harmful to health. Long-term wear is not good for health, it is generally not recommended to wear imitation jewelry, if you want to buy it, you should also pay attention to the regular brand.

Silver jewelry is just an ornament, and it cannot be tested for poison or detoxified. When choosing jewelry every day, you should also pay attention to buying it through regular channels to avoid endangering your health.

Resources:

[1] "Is the "Silver Needle Test of Drugs" in the TV Series Real?Entertainment and Entertainment is Good, Don't Take It Seriously!", Popular Science China 2023-08-28

[2] "Silver bracelet blackening is a "health warning"?long-term wear can really suck out the toxins in the body?", Guangxi CDC 2023-04-05

[3] "The radiation dose of this thing at home is seriously exceeded!It may cause cancer!But many people still use it to maintain health ......".I am a big doctor official Weibo 2023-12-16

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