Some recent research suggests that redheads lack some of the pain blockers found in the brain, so they need large doses of anesthesia when they see a doctor.
But recent research in this area has shown that redheads are not only more sensitive, but also more nervous. When visiting the dentist, red-haired people are several times more nervous than others. Of course, all this does not help reduce pain.
All this leads to unexpected results. “Redheads are half as likely to experience dental problems because, because of their fear of visiting a doctor, they try to take the best possible care of their oral cavity,” the researchers said.
Scientists believe that redheads are more susceptible to pain due to genetics, which are also responsible for hair color. As you know, red-haired people also have less protected skin and mucous membranes of the eyes. And all doctors are strongly encouraged to ask their patients how they feel about pain and would not like to use stronger anesthesia. And some clients may be asked what their natural hair color is.
According to Reuters