ทำไมบางคนถึงแยกซ้ายขวาไม่ได้?

Why are some people unable to distinguish left from right? I myself have been unable to tell left from right since I was a child. If someone tells me to go straight and then turn left, I won't know which way is. However, I have my own method. Since I'm left-handed, I think of the hand I use to write, and then I can tell which way is the left. Of course, I'm not alone. I think many people watching this video probably have friends or acquaintances who can't distinguish left from right, or they themselves can't. In fact, as many as 1 in 6 people say they have trouble distinguishing left from right… I'll explain later.