There are no side effects in Sweden.

When the pain can't stand it, we will want to take painkillers. But everyone knows that this thing is not good for the body. Is there a way to have no side effects? Implant the transistor! It sounds a little scary, but the University of Linköping in Sweden has developed this magical device. It is essentially an organic ion transistor that transmits a natural pain relief signal unique to the human body that intercepts the pain signal before it reaches the brain.

"So the anti-natural process, can there be no side effects?" You will ask. In fact, this transistor emits a chemical signal unique to the human body, which is highly compatible with us. Scientists have experimented with mice and the results have been successful in cutting off the pain signal.

It is conceivable that if this technology is applied, it will play a role in relieving the suffering of patients. However, it cannot be abused, and a person who does not feel pain is dangerous.