What is the genetic significance of humans being either left-handed or right-handed?
The handedness of a person, whether left or right, is determined by the dominant hemisphere of their brain. While most individuals are right-handed, about 10% are left-handed. The exact cause of this is still not well understood but research suggests a combination of genetic and environmental factors could be at play.

Some studies have noted that there is a slight excess of certain genes among left-handers. For instance, a 2013 study
There does not seem to be any medical significance to being left-handed, but this is not true for medical professionals. They are keenly aware that left-handers often require more frequent and more complicated surgeries, as their bodies work differently than those of right-handers. Can you explain why this is so and what the implications are for medical care for left-handers?

The genetic significance of handedness in humans is still a topic of active research, as the exact