Left-handers are one of the few people who make more use of their right brain. They are not necessarily smarter, but they are indeed talented in certain areas, and they have innate advantages in these areas. The more a person uses his left brain, the stronger his logical thinking ability. The more he uses the right brain, the stronger his image thinking. Therefore, left-handers have artistic talent and creativity. Einstein and Leonardo da Vinci are both left-handed. Of course, left-handers also have disadvantages. People's emotional understanding is controlled by the right hemisphere. Therefore, "left-handers" are inferior in emotional intelligence and cannot have an advantage in interpersonal communication. Therefore, there is no absolute answer to who is smarter, "left-handers" or "right-handers". It's just that the hemispheres of the brain that control them are different.