Heating underwear is an IQ tax. Some people say that self-heating underwear sounds like an IQ tax. Many experts say that they haven't heard of it for forty or fifty years, and there are underwear that automatically heats up. Underwear like this is sheer nonsense. Moreover, experts also say that underwear is breathable and airtight, and there is no problem of not being hot. In fact, what experts say is really reasonable, because underwear is definitely a close-fitting fabric. If it can heat itself, it will certainly not be particularly good for our health. Secondly, if it was really useful, someone would have done it long ago. If you want to choose underwear, you should choose one with good breathability.

Self-heating products are easy to cause low-temperature burns, redness and blistering. Self-heating products on the market are also varied. Although it will cause fever if it is attached to the skin, it may cause low-temperature burns on the skin. It is not recommended for everyone to use it. Even with these self-heating products, people can really feel slightly hot. However, it is this kind of continuous heating that is easy to cause low-temperature burns to human skin, which may lead to local redness and even blistering.

Some self-heating products are coated with a layer of industrial capsaicin, which will make them feel hot after touching the skin. In this process, it is easy to cause skin allergies. I once bought a self-heating waistline with small particles and black spots inside. I'm also curious about how these products became popular. It turns out that the small particles on the black spots are all artificial capsaicin, which is coated on hot spots. Skin exposed to hot capsaicin for a long time will naturally get hot. The chemical capsaicin is easy to cause skin allergy, even itching, pain and suppuration. Therefore, even if self-heating products are really effective, it is not recommended that everyone buy them.

Hot sanitary napkins are bullshit. Many girls on the Internet complain that Sophie's sanitary napkins are hot. After use, the applied part itches and even burns. And some people even burn blisters on sanitary napkins, but after stopping using Sophie's sanitary napkins, these symptoms are alleviated. Many people think that this kind of black technology sanitary napkin is obviously problematic. Even the health of consumers cannot be guaranteed. This is obviously problematic.