Although silver is an inactive element, it easily reacts with many substances in nature. The most common chemical reactions occur in: first, it reacts with hydrogen sulfide in the air; 2, reacting with elemental sulfur; Third, it reacts with some toxic gases.
Therefore, after a long time, there will always be some black substances on the surface of silverware whether it is worn on the body or not.
The silver bracelet is mainly worn on the wrist, which is very loose in contact with the skin. If you want to blacken the silver bracelet, there must be a lot of toxins in your body, and with such a big toxin, people would have died long ago.
It can be seen that the blackening of silver bracelets has little to do with health.