People at home and abroad have written in newspapers and magazines that there is no scientific evidence to prove that magnetic therapy products can cure diseases, and magnetic therapy products can only play the role of placebos. Buying magnetic therapy products is a waste of money and being cheated.

Now, let's analyze whether this statement makes sense.

First of all, I want to point out that many so-called "magnetic therapy products", such as magnetic rings, magnetic bracelets, magnetic necklaces, magnetic knee pads, magnetic neck protectors and so on. They are all made of titanium alloy or rare earth alloy and have no magnetism at all. They just cheat customers under the banner of "magnetic therapy products". Therefore, this is not evidence that "magnetic therapy products" cannot cure diseases at all.

Secondly, there are many things called "magnetotherapy products", such as magnetotherapy pillows, magnetotherapy mattresses, magnetotherapy quilts, magnetotherapy shoes and even magnetotherapy clothes, which do contain magnetic substances. However, their magnetic field intensity is very low, and the magnetic substances are wrapped in thick cloth and cotton, and the magnetic lines of force have already been exhausted when they reach the human body through these things. What therapeutic effect can it have? These things are everywhere in the market now, all under the banner of "magnetotherapy products", which has ruined the reputation of magnetotherapy and must be rectified.

Third, in order to achieve the purpose of treating diseases, "magnetic therapy products" must go through strict design demonstration and a large number of clinical trials before they can be introduced to the market. "Magnetic therapy products" rely on the magnetic field to act on the human body. After penetrating into the skin, they will interact with the inherent biological magnetic field in the human body to achieve the purpose of eliminating pain. This kind of interaction takes some time, and it can't be cured casually, nor can it be cured in a few minutes. There must be enough time to take action. Magnetic therapy has its own operating rules and is a rigorous science. If you don't conform to the laws of nature, you won't succeed. The failure of some shoddy medical devices cannot be attributed to the fact that "magnetic therapy products" can't cure diseases.

According to my years of research experience, "magnetic therapy products" must meet the following conditions to achieve the purpose of eliminating pain:

1) therapeutic instruments must be magnetic substances, and rare earth permanent magnet alloys are ideal materials.

2) Magnetic materials must have strong magnetic field strength, generally not less than 2000 gauss.

3) Magnetic substances must be in direct contact with human skin, and nothing, including air, can be separated.

4) There must be enough time for magnetic substances to act on the human body, that is, the so-called "needle retention" in acupuncture, which is generally not less than 30 minutes.