There are certainly dangers, mainly silicon powder and silicon oxides floating in the air, radiation generated by high temperature and high current intensity, etc. However, the dangers are not great, but it should not be used for a long time. It is said that this should not exceed three years. For the best, in fact, monocrystalline is good, but polycrystalline is more harmful, so they recruit older people, most of whom are married and have children. It seems as if the polycrystalline works. for a long time, it can cause fertility problems. ,,
The main component of the human body is water. Water can absorb long-wave radiation from the sun, mainly infrared rays. absorbs a lot of heat and of course generates heat. When you stand in the shade, as the temperature in the shade is much lower than that of the new bodynt heated, the body temperature drops quickly, so it feels a little cold